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Against all the odds, the Democratic People's Republic of Korea (DPRK, North Korea) has survived two decades of acute crisis since the end of the Cold War. It has neither collapsed nor reformed itself, despite the dire state of its economy and the existence of extensive international sanctions. This has been possible as it has skillfully adapted to circumstances and found new ways to maintain supply lines and revenue streams, developing and using a range of suppliers and altering their relative importance over time, as well as the way in which they operate, in order to circumvent sanctions. Furthermore, they have also been able to develop new ones. There has also been a shift away from direct state control over illicit and semi-official activities, towards putting more trust in market mechanisms and obtaining the state's and the regime's share through different forms of "loyalty schemes", bribery and public-private constructions. This shift has made it more difficult to target the different sources of revenue. It is possible to identify ten supply lines and revenue streams: (a) The shadow economy and semi-official trade; (b) the "court economy"; (c) international trade; (d) the Kaesong Industrial Zone; (e) the export of labour and remittances; (f) mobile phones; (g) tourism ; (h) the arms trade; (i) illicit activities; and (j) foreign assistance. The shadow economy and semi-official trade have been crucial to keeping the state functioning, and the regime as well as the wider population alive. The success of the court economy has been crucial for the survival of the regime. The revenues gained from the export of labour and the national mobile phone network are also surprisingly large. The arms trade continues to bring in revenue, as do tourism and remittances, but none of these are as important as they once were. Illicit activities continue to be a major source of revenue. However, as the government becomes more skilled at hiding its involvement, it is increasingly difficult to estimate the amounts involved or obtained by the regime. International trade, most notably with China and South Korea, is also a major source of income. Foreign assistance also contributes, but is very limited in comparison. There is currently a wide range of sanctions on North Korea. These sanctions have been a complete failure in fulfilling their aim of halting North Korea's nuclear weapon programme. They have, however, had a substantial impact on the country. Under their pressure, North Korea has been forced to adapt to a new reality, not least by hiding its involvement in illicit activities and finding new revenue streams. It has been highly successful at both. In trying to refine and design new sanctions, it should be clear that there is no silver bullet. First and foremost, it is important to do the utmost to implement the sanctions currently in place, including monitoring and fine-tuning their implementation. All possible efforts should be made to get those states which do not currently comply to do so. Sanctions will not work as long as China and to some extent South Korea continue to engage with North Korea. Sanctions should target the following areas: 1. The court economy should be a prime target for international sanctions. Financial sanctions are likely to be the most effective. 2. The export of labour should be targeted by sanctions. It is a major revenue stream and, moreover, an area in which dependence on Chinese compliance is less important. 3. Existing sanctions on International trade should be fine-tuned and developed. It is extremely doubtful that they will make a major difference, however, as North Korea's number one trading partner, China, is unlikely to comply. Nonetheless, such sanctions send a signal and are disruptive in Pyongyang. 4. Efforts to implement sanctions that target the arms trade should continue, not least the work to detect, monitor and intercept suspicious cargoes and financial transactions in and out of North Korea. 5. Sanctions targeting illicit activities should be fine-tuned and developed in order to increase their effectiveness. Efforts should be made to convince China to increase its pressure, in particular because apart from China, there are few channels left for North Korean illicit activities. 6. The Kaesong Industrial Zone is in theory a good and easy target for sanctions, and its closure would be a major blow to the regime. However, in practice this is beyond the control of the international community, and it is unlikely that South Korea would be willing to close Kaesong. The following areas should not be targeted by sanctions: 1. The shadow economy and semi-official trade are not good targets for sanctions. They are difficult to target, and doing so would be likely to have a disproportionate impact on ordinary North Koreans. 2. Remittances are under control and there is no need for, nor would there be any likely impact from, more sanctions. 3. The mobile phone network offers limited opportunities for successful sanctions. In addition, the proliferation of mobile phones should not be a target for sanctions because increased communication in a closed authoritarian state such as North Korea is a positive development. 4. Foreign assistance is not an area that should be targeted by international sanctions. 5. Outgoing Tourism is not possible to develop effective sanctions against. Nor would it be a good thing if wanting North Korea to open up.

As being state who gained the most attention from all over the world, North Korea has been one of the unique countries which international system has ever seen. With her sole and unparalleled Juche regime which emphasizes on government's self-reliance policy and unpredictable leaders, North Korea has not ceased her dedication to develop nuclear weapons. Since her establishment in 1950 with Korea War and also with 38th Parallel, Democratic People's Republic of Korea have been trying to enhance her military, economy, industry and also mass weapons of destruction programme. With Union of Soviet Socialist Republics assistance, North Korea was able to start her Nuclear Weapon programme by saying that it was for peaceful uses in 1980. However, her abrupt development and receiving aid from the Soviet Union disturbed USA and European countries. Therefore, North Korea signed Treaty on the Non-Proliferation of Nuclear Weapons in 1993 but she said that she withdrew from the agreement which led first North Korea Nuclear crisis to break out. Although USSR(Union of Soviet Socialist Republics) was collapsed in 1991, North Korea has not left her devotion to nuclear weapons. With her new leader, Kim Jong Un who took power from his father's abrupt death in 2011, have been aggressive for developing and testing mass weapons of destruction. Since 2009, North Korea made her first missile test in 2012 which was done successfully. Thus, North Korea has become a serious threat which could cause a major effect with her missiles in the international area. North Korea's possession of nuclear weapons gives concern to her neighbours and also USA who she designated as her archenemy. With President Donald Trump's inauguration and his words of " bring Fire and Fury" to Northern part of Korean peninsula, made two state's relationship to be conflicted. However, relations of USA and North Korea have been strained ever since. DPRK(Democratic People's Republic of Korea) knows that USSR possessed mass weapons of destruction and used them as deterrent strategy. And she challenged the USA with those weapons. Thus, North Korea, with her nuclear power, she is able to maintain her unique Juche regime as well as her politics both inside and outside without any state especially USA to interfere. Therefore, by using nuclear weapons programme as a deterrence strategy, North Korea have been advancing in her programme and continuing to challenge USA and other states with her mass weapons of destruction. Under the question of why North Korea is willing to develop and possess nuclear weapons and in order to answer and defend thesis question, case study approach is used which approaches a problem with different angles. As the thesis qualitative one, two results were reached. The first result for North Korea's and the second result for other state's. For the first result, it is indicated that North Korea is aware of her unique and unparalleled regime and therefore, in order to avoid USA and also other states to interfere her politics and destroy her regime, she uses nuclear weapons a deterrence tool. Accordingly, North Korea needs mass weapons of destruction in order to support her regime, economy and future of her country. For the second result, all of the states have their reasons for North Korea in terms of mass weapons of destruction. However, they all compromise on one thing: They do not want North Korea to be threat to whole world. In addition, they are against proliferation of nuclear weapons. Because in the past, Second World War set an example of a nuclear war which could only bring chaos, millions of casualties. Therefore, states are against North Korea's ambition to develop mass weapons of destruction. Although they are trying to stop her with sanctions by the United Nations, North Korea does not seem to give up her nuclear weapons yet. Dünyanın en fazla ilgi gören devletlerin biri olan Kuzey Kore, uluslararası sistemin tanık olduğu eşsiz ülkelerden biri olmuştur. Benzersiz Juche rejimi ve eşsiz liderleri ile, Kuzey Kore nükleer silah geliştirme konusundaki kararlılığını hala devam ettirmektedir. 1950'de Kore Savaşı ve 38. Paralel ile kuruluşundan bu yana, Kuzey Kore askeri alandaki kitle imha silahlarını geliştirmeye çalışmaktadır. SSCB'nin yardımı ile Kuzey Kore, Nükleer silah programını 1980'de barışçıl kullanımlar için olduğunu söyleyerek başlatabilmiş ancak, almış olduğu söz konusu yardım ABD ve Avrupa ülkelerini rahatsız etmiştir. Bu nedenle Kuzey Kore 1993 yılında Nükleer Silahların Yayılmasını Önleme Antlaşması'nı imzalamaya zorlanmış, daha sonra anlaşmadan çekildiğini söylemiştir. Her ne kadar 1991'de SSCB çökmüş olsa da, Kuzey Kore nükleer silahlara olan bağlılığını bırakmamıştır. 2011'de babasının ani ölümü yüzünden liderliği devralan yeni lider, Kim Jong Un, kitle imha silahlarını geliştirmek ve test etmek konusunda babasından ve büyükbabasından daha saldırgan bir politika takip etmiştir. Kuzey Kore, 2009 füze testlerinden bu yana, 2012'de füze denemesini başarıyla tamamlamıştır. Böylece, Kuzey Kore , uluslararası sistemin önünde, nükleer füzeleri ile devletler için büyük tehdit haline gelmiştir. Kuzey Kore'nin baş düşmanlarından biri olarak saydığı ABD de, Kuzey Kore'nin nükleer güce sahip olmamasını isteyen ülkelerdendir. Donald Trump'ın ABD başkan olmasıyla ve Kore yarımadasının Kuzey kısmına "ateş ve öfke sözleriyle, iki devletin ilişkileri daha da kötüleşmiştir. Ancak, her iki ülkenin ilişkileri gerginleşse de , Kuzey Kore, kitlesel imha silahlarını ABD ve müttefiklerine caydırıcı bir etken olarak kullanmaya devam etmektedir. Kuzey Kore, zamanında SSCB'nin nükleer silahlara sahip olduğunu ve bu füzelerle ABD'ye meydan okuduğunu ve hatta bunları bir caydırıcı etki olarak kullandığını bilmektedir. Nükleer silah programını caydırıcı bir strateji olarak kullanan Kuzey Kore, kitlesel imha silahlarını geliştirmeye ve ABD ve diğer devletlere de kafa tutmaya devam etmektedir. Kuzey Kore, nükleer füzelerinin verdiği caydırıcılık avantajı ile diğer ülkeleri özellikle ABD'yi kendi iç ve dış politikasından uzak tutabilmeyi başarmıştır. Kuzey Kore neden Nükleer silahlanmayı geliştirmek ve sahip olmak istiyor soru altında, Vaka çalışması yaklaşımını kullanarak sorumu cevaplamaya çalıştım. Vaka çalışması yaklaşımı, bir problemi farklı açılardan inceler ve bu tez de nitel bir tez olduğu için bu tekniğin uygun olduğu düşünülmüştür. Tezde iki sonuca ulaşılmıştır: İlk sonuç Kuzey Kore için, ikinci sonuç ise diğer devletler içindir. İlk sonuçta, Kuzey Kore'nin, eşsiz ve rakipsiz rejimin farkında olduğu ve herhangi bir müdahaleyi, özellikle ABD ve diğer devleti engelleyebilmek için nükleer silahlarını caydırıcılık aracı olarak kullandığı noktasına ulaşılmıştır. Bu yüzden de Kuzey Kore'nin, rejimi, ekonomisi ve geleceği için nükleer güce ihtiyacı vardır. İkinci sonuç için ise, bütün devletlerin nükleer silahlanma hakkında Kuzey Kore karşı nedenleri olduğu belirtilebilir. Lakin, bütün devletlerin ortak bir görüşü var: Kuzey Kore dünyaya bir tehdit olmamalı ve nükleer gücü yayılmamalı. Çünkü İkinci Dünya Savaşı, nükleer savaşın sadece kaos, milyonlarca ölüm getirmesine örnek teşkil etmiştir. Bu yüzden, devletler Kuzey Kore'nin kitlesel imha silahlarını geliştirme ve sahip olma hırsına karşı çıkmaktadırlar. Birleşmiş Milletler tarafından uygulanan yaptırımlarla Kuzey Kore durdurulmaya çalışılmaktadır, ama Kuzey Kore, nükleer silahlanmayı bırakacak gibi de gözükmemektedir.

South Korea is reacting sharply today to a Treaty on Comprehensive Strategic Partnership signed Wednesday by Russian President Vladimir Putin and North Korea's Supreme Leader Kim Jong Un.The treaty notably included a mutual defense clause invoking a defense pact: in the "case any one of the two sides is put in a state of war by an armed invasion from an individual state or several states, the other side shall provide military and other assistance with all means in its possession without delay in accordance with Article 51 of the UN Charter and the laws of the DPRK and the Russian Federation."The future implications of such an agreement remain uncertain, but the underlying motivation for its signing can be gleaned from Putin's press statements in Pyongyang. The Russian leader drew attention to the U.S. and NATO supplying to Ukraine "long-range high-precision weapons, F-16 aircraft and other technology-intensive arms and equipment for delivering strikes at Russian territory." Putin went on to state that "In this context, the Russian Federation does not rule out developing military and technical cooperation with the Democratic People's Republic of Korea under the document signed today." Clearly, Moscow is demonstrating its ability and willingness to undermine Washington's policy on the Korean Peninsula — a policy that, in principle, Russia had previously backed by endorsing UN sanctions against North Korea. While Putin has been cautious in not seeking an expansion of the fighting in Ukraine to neighboring NATO member-states, in response to US military aid to Ukraine he has expanded ties with Washington's adversaries and sought to disrupt long-standing American policies from East Asia to the Middle East and beyond. In response to the treaty, South Korea stated that it will "reconsider the issue of arms support to Ukraine." At Washington's request, Seoul has already indirectly sent hundreds of thousands of artillery shells to Ukraine. In fact, South Korea in 2023 indirectly sent more 155mm artillery shells to Ukraine than all European countries combined. This has played an important part in helping Ukraine, which is suffering from serious shortages of ammunition. However, Seoul has so far refrained from dispatching weapons — as opposed to ammunition — to Kyiv to avoid antagonizing Russia.On the one hand, the revitalized Russia-North Korea defense ties could prompt Seoul to revisit its relatively accommodative policy toward Moscow. On the other, the Kremlin presumably hopes that increased tension on the Korean peninsula will discourage Seoul from drawing down its own stocks of ammunition to supply Ukraine, and will remind Washington of the damage that Russia can do to U.S. interests around the world if it increases its own aid to Ukraine and abandons restrictions on how far Ukraine can use U.S. weapons to attack Russian territory.Prior to the Putin-Kim summit, South Korean officials had warned Moscow "not to go beyond a certain point" in its defense cooperation with Pyongyang and vowed to take necessary countermeasures depending on the summit's outcomes. Reiterating his government's desire to maintain stable ties with Russia, South Korean National Security Advisor Chang Ho-jin stated in a recent interview, "Moscow should take into consideration which among North Korea and South Korea will be more important to it, once Russia ends its war with Ukraine." From Seoul's perspective, Russia's seemingly unambiguous commitment to supporting Pyongyang in a potential Korean Peninsula conflict — as suggested in their new mutual defense pact — can be viewed as an indication that Moscow is shifting its policy toward the Korean peninsula from pursuing cooperative relations with both Koreas to not minding an adversarial relationship with South Korea for the sake of cooperation with North Korea. It has been widely reported – although both Pyongyang and Moscow deny it – that North Korea has supplied Russia with millions of shells and scores of ballistic missiles for its war in Ukraine. The impression that Moscow is more clearly siding with Pyongyang will certainly motivate Seoul to rethink its so-far restrained position on the issue of arms supplies to Ukraine. With the idea of accommodating Moscow to disincentivize its military cooperation with Pyongyang increasingly proving to be a false hope, Seoul may no longer find a strong incentive to bear the political burden of refusing its crucial ally Washington's calls for South Korean military aid to Ukraine. As the battlefield situation in Ukraine shifts in favor of Russia, U.S. pressure on South Korea to send munitions and weapons to Ukraine would only grow, making it more difficult for Seoul to keep resisting cooperation on that front. Seoul is also likely provoked by Moscow's seeming disregard for its several warnings not to cross the line and therefore could find it necessary to respond with strong retaliation in demonstration of resolve. The sense of bitterness could reinforce voices in Seoul calling for sending weapons to Ukraine and weaken voices calling for continued restraint. Additionally, South Korean President Yoon Suk-yeol's continuous struggle to boost his approval rating, which has been hovering around the low 20s, can serve as another motivation for Seoul to consider arms supplies to Ukraine. Showing defiance of Moscow would appeal to the ruling party's traditionally anti-communist conservative political support base and may also gain support from the broader population who might feel embittered by what they would see as Moscow's betrayal of their country's prudent restraint. To be sure, there are also factors that may compel Seoul to think twice about supplying military aid to Ukraine. Exporting a chunk of its stockpiles to Ukraine comes with a dilemma that South Korea's own readiness against North Korea would be reduced. Another question Seoul must consider is what Moscow's reaction would be if it did send Ukraine sophisticated weaponry. Speaking in Vietnam on Thursday, Putin said South Korea had "nothing to worry about" but cautioned against sending arms to Ukraine as "that would be a very big mistake." The Putin-Kim joint statement's relatively vague language on defense capabilities cooperation may leave space for Moscow to refrain from providing Pyongyang with military technologies that Seoul would consider a "red line," including advanced missile and nuclear development technologies. However, if Seoul does increase its arms supplies to Ukraine, the result may well be to bring about Pyongyang's possession of more advanced ballistic missile and tactical nuclear capabilities with Moscow's assistance — something that is regarded in South Korea as a nightmare scenario.It is also questionable how much South Korean arms can improve Ukraine's position on the battlefield. From Moscow's view, the military, economic, and demographic fundamentals of the battlefield strongly favor Russia's ability to effectively continue waging war against Ukraine. The provision of increased lethal aid from South Korea may or may not alter these fundamentals. However, previous examples demonstrate that there has yet to be any silver bullet weapon that dramatically alters Ukraine's ability to dislodge the Russian armed forces from significant portions of occupied Ukrainian territory. Seoul may worry about the risk that its munitions might only serve to further provoke Moscow and encourage more dangerous Russian military cooperation with North Korea without meaningfully improving Ukraine's battlefield situation. Whether Seoul decides to step up as an arms supplier for Ukraine remains to be seen, but overall, the possibility seems to have certainly increased in light of the upgraded Russia-North Korea defense pact. As the threat of new wars proliferate from Europe to the Middle East, and potential conflicts simmer in East Asia, the lack of active and serious communication channels between Washington and Moscow produces ripe environments for an uncontrolled security spiral between the two nuclear superpowers. As long as Russia believes that the U.S. is continuing to tighten the screws around it in Ukraine (or elsewhere in its "near abroad"), Moscow will play its cards to undermine and create problems for the U.S. and its allies across the globe. The dangers of this continuing unchecked could lead to severe consequences for many more than just those already suffering in Ukraine or on either side of the 38th parallel.

학위논문(박사)--서울대학교 대학원 :자연과학대학 지구환경과학부,2020. 2. 이준기. ; 유라시아판의 동부는 태평양판과 필리핀 해양판의 섭입 등 복합적인 구조운동은 겪었다. 이 때문에 이 지역에 산발적으로 분포하는 확장 분지들과 판내부 화산들은 하나의 기작으로 설명하기 쉽지 않다. 따라서 이 지역에서 발생하는 지진 활동과 복잡한 구조사를 이해하기 위해서는 신뢰도 있는 속도구조 모델이 필요하다. 이에 본 논문에서는 배경잡음 방법을 이용하여 동북아시아 지역에 대한 속도구조 모델을 작성했다. 배경잡음 방법은 지각과 상부맨틀의 속도구조 연구를 위해 통용되는 방법 중 하나이다. 이 방법은 지진 자료에 비해 지각 깊이를 지나는 단주기 자료를 얻기에 유리하며, 표면파의 장주기 신호를 사용하면 상부맨틀 깊이까지 속도구조를 구할 수 있다. 또한 이 방법은 관측소 사이 배경잡음의 상호상관 함수로부터 구한 그린함수(Green's function)를 이용하기 때문에 지진발생빈도가 적거나 연구지역내에 위치한 관측소의 수가 적더라도 사용가능하다. 따라서 본 논문에서는 배경잡음 방법을 동북아시아지역의 다양한 관측망을 활용하여 이 지역의 특정지역에 대한 다양한 크기의 속도구조 모델을 만들었다. 첫 번째로, 북한의 내륙과 동해안에 대한 속도구조 모델을 중국과 남한의 관측망으로부터 얻은 레일리파 분산곡선 자료를 베이지안 역산을 통해 구했다. 그리고 구해진 모델을 2013년 북핵지진에 대한 풀 모멘트 텐서 역산을 통해 평가했다. 그 결과, 작성된 북한의 내륙과 동해안에 대한 속도구조 모델을 경로 따라 함께 사용하는 것이 기존의 속도구조 모델을 사용한 경우보다 더 좋은 역산 결과를 보이는 것으로 나타났다. 이는 북한지역을 지나는 파의 경로 효과를 고려함으로써 지진활동 관측 효과를 증대시킬 수 있음을 보여준다. 따라서 경로에 따른 모델은 북한지역에서 발생하는 자연지진 및 인공지진의 특성을 연구하고 관측하는데 유용할 것으로 보인다. 두 번째로, 제주도에 설치한 임시관측망 자료를 활용하여 제주도 상부지각에 대한 등방 및 이방성 속도구조 모델을 작성했다. 2–15 초 주기의 레일리판와 러프파의 군속도 및 위상속도의 분산 자료를 계층적이고 유동 차원적인(transdimensional) 베이지안 역산을 통해 함께 역산하여 제주도 하부 10 km 깊이에 대한 등방 및 이방성 속도구조 모델을 작성했다. 결과를 보면 2 km 보다 얕거나 5 km 보다 깊은 곳에서는 음의 이방성 (VSH VSV )이 우세하며 이는 다른 화산에서 보고된 적이 있는 마그마의 수평적 공급에 의한 구조로 볼 수 있다. 한라산 중심에서 이 양의 이방성이 나타나는 층은 상부의 상대 속도가 빠른 구간과 그 하부의 상대 속도가 느린 구간으로 나눌 수 있다. 이러한 구조는 먼저 관입하여 충분히 식은 수평관입 구조와 아직 충분히 식지 않았거나 일부 녺아있을 가능성이 있는 하부의 따뜻한 수평관입 구조를 지시하는 것으로 볼 수 있다. 이러한 다층적인 구조는 제주도 하부로부터 지표로 이어지는 제주도 중심부의 복잡한 마그마 공급 구조를 지시하는 것으로 볼 수 있다. 마지막으로, 동해와 그 주변지역에 대한 방사상 이방성 (radial anisotropy) 모델을 레일리판와 러프파의 군속도 및 위상속도의 분산 자료를 계층적이고 유동 차원적인(transdimensional) 베이지안 역산을 통해 작성했다. 총 237개의 관측소를 이용하여 55,000개 이상의 러브파 군속도 및 위상속도 분산곡선을 5-60 초 주기에 대해 구했다. 그리고 이를 같은 지역에 대한 기존연구의 레일리파 분산곡선 자료 및 전지구 모델로부터 얻은 장주기 (70-200 초)의 레일리파 및 러브파 분산곡선 자료를 함께 역산했다. 이를 통해 연구지역 하부 160 km 깊이에 대한 3차원 이방성 델을 작성했다. 모델에서 나타나는 가장 주목할 점은 강한 양의 이방성 구간의 두께와 깊이 변화 양상이다. 양의 이방성이 강한 구간은 대륙하부에서 약 70-150 km 사이에 나타나지만, 신생대 확장을 겪은 동해에서는 주로 30-60 km의 상대적으로 더 얕은 구간에서 얇게 나타난다. 이는 암석권 깊이 변화 및 그로 인한 복잡한 동력학적 구조운동의 결과로 인한 암석권-연약권 경계의 깊이 변화에 따른 것으로 보인다. ; The eastern margin of the Eurasian continental plate has suffered multiple tectonic events including interactions with the subducting Pacific and Philippine Sea plates. Therefore, heterogeneous and distributed extensional basins and intraplate volcanoes in the region are not easily explained with a simple mechanism. To understand seismic activity and complex tectonic processes in the region, reliable seismic velocity models are essential. To construct seismic velocity models for the Northeast Asia, the ambient noise method is used in this thesis. The ambient noise method is widely used for constructing velocity structures of the crust and upper mantle. This method useful for obtaining shorter period data of crustal depth than earthquake data and it is also possible to image structures up to upper mantle depth by using longer periods of surface waves dispersion data. Additionally, the method using ambient noise data is useful for construct seismic velocity models for the regions where have low local seismicity or few available stations inside because Green's functions between station pairs can be obtained from cross-correlations of seismic ambient noise. In this thesis, seismic velocity models are constructed based on the ambient noise method using various seismic networks for various scale in the Northeast Asia. First, 1-D velocity models for both the inland and offshore (western East Sea) of the northern Korean Peninsula are constrained based on the results of a Bayesian inversion process using Rayleigh wave dispersion data, which were measured from ambient noise cross correlations between stations in the southern Korean Peninsula and northeast China. The proposed models were evaluated by performing full moment tensor inversion for the 2013 Democratic People's Republic of Korea (DPRK) nuclear test. Using the composite model consisting of both inland and offshore models resulted in consistently higher goodness of fit to observed waveforms than previous models. This indicates that seismic monitoring can be improved by using the proposed models, which resolve propagation effects along different paths in the NKP region. Therefore, the composite model can be useful to understand the characteristics of tectonic earthquakes and monitor anthropogenic seismic events in the NKP. Second, upper crustal isotropic and radial anisotropic structures beneath Jeju Island are imaged by using ambient noise data from a temporary seismic network. A series of hierarchical and transdimensional Bayesian inversions were performed to construct upper crustal (1–10 km) isotropic and anisotropic structures jointly using surface wave (Rayleigh and Love wave) group and phase velocity dispersion data over a 2–15 s period. The results show that layers of negative anisotropy (VSH 5 km) depths, which was interpreted as reflecting dyke swarms responsible for the more than 400 cinder cones at the surface and the vertical plumbing systems supplying magma from deeper sources, respectively. Additionally, a layer with significantly positive radial anisotropy (VSH > VSV, up to 5%) was found at middle depths (2–5 km), and was interpreted as horizontally aligned magma plumbing systems (e.g., sills) through comparisons with several other volcanoes worldwide. In comparison with the isotropic structure, the positive anisotropic layer was separated into upper and lower layers with locally neutral to slightly fast and slower shear wave velocities, respectively, beneath the largest central crater (Mt. Halla). Such a structure indicates that the cooled upper part of the magma plumbing systems formed within the horizontally developed sill complex, and is underlain by still-warm sill structures, potentially with a small fraction of melting. With dykes predominant above and below, the island-wide sill layer and locally high-temperature body at the center explain the evolution of the Jeju Island volcanoes by island-forming surface lava flows and central volcanic eruptions before and after the eruptions of cinder cones. Lastly, the radial anisotropy model for the East Sea and surrounding region is developed by conducting joint inversion of Love and Rayleigh wave dispersion data using hierachical and transdimensional Bayesian inversion techniques. Using continuous seismic records of 237 broad-band seismic stations, more than 55,000 group and phase velocities of Love wave fundamental mode are extracted for periods of 5-60 s. Rayleigh wave dispersion data are obtained from a previous study (Kim et al., 2016; for periods of 8-70 s). In addition longer period Love and Rayleigh wave dispersion data from the global dispersion model (Ekstrom, 2011; for periods of 70-200 s) are combined. Therefore, the constructed 3-D radial anisotropy model provides details about the crustal and upper mantle anisotropic structures to the depth of 160 km. The most prominent feature of the model is the variation in the thickness and depth of a layer with strong positive radial anisotropy (VSH > VSV), which indicates horizontal upper mantle flows at the top of asthenosphere. The layer exists at depths between 70 and 150 km beneath continental regions compared to the thinner and shallower (30-60 km) structure beneath regions subjected to extension during the Cenozoic. These upper mantle variations represent the undulation of the LAB attributed to complex geodynamic processes in interactions with the preexisting continental lithosphere. ; Chapter 1. Introduction 1 Chapter 2. 1-D velocity model for the North Korean Peninsula from Rayleigh wave dispersion of ambient noise cross correlation 6 2.1. Introduction 7 2.2. Data and methods 12 2.3. Results and discussion 20 2.4. Conclusion 32 Chapter 3. Upper crustal shear wave velocity and radial anisotropy beneath Jeju Island volcanoes from ambient noise tomography 33 3.1. Introduction 34 3.2. Geologic Setting and background 38 3.3. Data and Methods 43 3.4. Results 52 3.5. Discussion 67 3.6. Conclusions 75 Chapter 4. Imaging the anisotropic upper mantle structure beneath northeast Asia from Bayesian inversions of ambient noise data 77 4.1. Introduction 78 4.2. Data and Methods 80 4.3. Results and Discussion 89 4.4. Summary 110 Chapter 5. Summary and conclusion 112 References 115 Abstract in Korean 144 ; Doctor

n/a ; Timeline of key events: March 2011: Anti-government protests broke out in Deraa governorate calling for political reforms, end of emergency laws and more freedoms. After government crackdown on protestors, demonstrations were nationwide demanding the ouster of Bashar Al-Assad and his government. July 2011: Dr. Nabil Elaraby, Secretary General of the League of Arab States (LAS), paid his first visit to Syria, after his assumption of duties, and demanded the regime to end violence, and release detainees. August 2011: LAS Ministerial Council requested its Secretary General to present President Assad with a 13-point Arab initiative (attached) to resolve the crisis. It included cessation of violence, release of political detainees, genuine political reforms, pluralistic presidential elections, national political dialogue with all opposition factions, and the formation of a transitional national unity government, which all needed to be implemented within a fixed time frame and a team to monitor the above. - The Free Syrian Army (FSA) was formed of army defectors, led by Col. Riad al-Asaad, and backed by Arab and western powers militarily. September 2011: In light of the 13-Point Arab Initiative, LAS Secretary General's and an Arab Ministerial group visited Damascus to meet President Assad, they were assured that a series of conciliatory measures were to be taken by the Syrian government that focused on national dialogue. October 2011: An Arab Ministerial Committee on Syria was set up, including Algeria, Egypt, Oman, Sudan and LAS Secretary General, mandated to liaise with Syrian government to halt violence and commence dialogue under the auspices of the Arab League with the Syrian opposition on the implementation of political reforms that would meet the aspirations of the people. - On October 26, the Ministerial Committee held discussions in Damascus with President Assad. - The establishment of the Syrian National Council (SNC) in Istanbul, the first opposition coalition of different groups, but failed to gain international recognition because of deep divisions. November 2011: Syrian government agreed to implement a new Arab Action Plan (attached) endorsed by LAS Ministerial Council to end all acts of violence, release detainees, withdraw Syrian military and armed forces from cities, and ensure freedom of movement for journalists and observers throughout the country. -LAS Ministerial Council suspended the membership of Syria (November 16), and imposed economic sanctions (November 27) and some member states withdrew their ambassadors from Damascus, as it failed to comply with the Action Plan. December 2011: Negotiations with Damascus were resumed and an agreement is finally reached on the implementation of the Action Plan. LAS Observer Mission was deployed in Syria to monitor the implementation of the plan (December 24). - The Mission later submitted a report (attached) covering the period from 24 December 2011 to 18 January 2012 in accordance with the mandate conferred by the protocol concluded between the Syrian government and LAS. The report was divisive among the members of the Arab League, as it blamed both the regime and the opposition for the violence. January 2012: LAS Ministerial Council adopted resolution 7444 (attached) which called on the Syrian President to immediately hand over power to his deputy in order to begin the process of a political transition, which would include negotiations with the opposition, the formation of a national unity government, and the holding of elections. The resolution also, requested the Chair of the Arab Ministerial Committee and the Secretary General to brief the United Nations Security Council on the developments and get it to endorse the plan. - On January 22, Saudi Arabia withdrew its monitors, followed by the other GCC members on January 24. - On January 28, the Secretary-General of LAS announced the suspension of the activities of the observer mission, given the serious deterioration of the security situation. - On January 31, Sheikh Hamad bin Jassim bin Jabr Al-Thani, Prime Minister and Minister for Foreign Affairs of the State of Qatar, Chair of the Arab Ministerial Committee and Dr. Nabil Elaraby, Secretary General of the League of Arab States briefed the Security Council (attached) on Arab efforts and called on the council to adopt a draft resolution submitted by Morocco, supporting Arab League resolution 7444 (which called on the Syrian President to hand over power to his deputy) February 2012: - On February 4, Russia and China vetoed a draft Security Council resolution (attached), tabled by Morocco (the Arab member of the Security Council) and others. - On February 12, the Arab League adopted its resolution 7446 (attached), practically "transferring the file" to the United Nations Security Council. - On February 16, the issue was taken to the General Assembly, which adopted its Resolution 66/253, calling-among other things- for the appointment of a Special Envoy. - On February 23, former United Nations Secretary-General Kofi Annan was appointed as the Joint Special Envoy (JSE) of the United Nations and the League of Arab States on the Syrian crisis, to facilitate a peaceful Syrian-led and inclusive political solution. - On February 24, and upon the initiative of President Sarkozy of France, the first meeting of the Group of Friends of the Syrian People was held in Tunis, with the participation of more than 60 countries and representatives from the United Nations, the League of Arab States, the European Union, the Organization of Islamic Cooperation, the Arab Maghreb Union and the Cooperation Council for the Arab Gulf States to discuss the worsening situation in Syria. The group noted the Arab League's request to the United Nations Security Council to issue a resolution to form a joint Arab-UN peacekeeping force following a cessation of violence by the regime, and called on LAS to convene a meeting of all disparate opposition groups to agree on a clear statement of shared principles for a transition in Syria. The meeting recognized the SNC as a legitimate representative of Syrians seeking peaceful democratic change. Text of the Conclusions of the Meeting. March 2012: The SNC formed a military council to organize and unify all armed resistance. - The JSE, Kofi Anan, submitted a six-point peace plan to the UN Security Council (which the council adopted in April in its resolution 2042), that called for commitment to a Syrian-led political process, achieve an effective United Nations supervised cessation of armed violence in all its forms by all parties, ensure provision of humanitarian assistance, intensify the release of arbitrarily detained persons, ensure freedom of movement for journalists and respect the freedom of demonstrating peacefully. It was later approved by the Syrian government, and the opposition remained skeptical. April 2012: United Nations Supervision Mission in Syria (UNSMIS) was established by United Nations Security Council resolution 2043 (attached) initially for a 90-day period, to monitor a cessation of armed violence in all its forms by all parties and to monitor and support the full implementation of the Joint Special Envoy's six-point plan on ending the conflict in Syria. June 2012: The Action Group for Syria, with the participation of the Secretary Generals of the United Nations and the League of Arab States, the Foreign Ministers of China, France, Russia, United Kingdom, United States, Turkey, Iraq, Kuwait, Qatar and the European Union High Representative for Foreign and Security Policy, chaired by the JSE, met in Geneva and adopted the Geneva Final Communique (attached) which called for the establishment of a transitional governing body, with full executive powers, as part of the agreed principles and guidelines for a Syrian-led political transition. July 2012: The Syrian Opposition meeting was held under the auspices of LAS in Cairo, and reached an agreement on a national compact and a detailed transition plan. The two documents complemented the guidelines and principles laid out by the Action Group in Geneva. August 2012: UNSMIS mandate came to an end owing to an intensification of armed violence and use of heavy weapons. - Prime Minister Riad Hijab defected, and US President Obama's first direct threat of force against Syria, if Assad's regime deploys or uses chemical or biological weapons, calling such action a "red line" for the US. - Joint Special Envoy, Kofi Annan announced his resignation because of the Security Council failure to reach binding resolutions; Lakhdar Brahimi succeeded Annan as the Joint Special Representative of the United Nations and the League of Arab states for Syria (JSR). September 2012: Egypt hosted the high level preparatory meeting of the regional Quartet on Syria on September 10, which included Turkey and Saudi Arabia key backers of the Syrian Revolution, and Iran the major supporter of al-Assad regime, in an initiative to bring together regional powers to voice their positions on how to end the Syrian conflict. - On September 17, the Quartet's ministerial meeting took place in Cairo; Saudi Arabia opted out while Iran proposed a peace plan which called on all parties to cease violence and stop all financial and military support to the opposition, and suggested the deployment of observers from the quartet's nations to Syria. The participants failed to reach an agreement. October 2012: a four-day ceasefire attempt was announced towards late October, in respect to Eid al-Adha Holiday, which was breached on the first day in Homs, Aleppo and Damascus. November 2012: National Coalition for Syrian Revolutionary and Opposition Forces (SOC) was formed in Qatar, responding to repeated calls from their Western and Arab supporters to create a cohesive and representative leadership, it excluded Islamist militias. December 2012: US, Britain, France, Turkey and Gulf states formally recognized SOC as "legitimate representative" of the Syrian people. January 2013: the Emir of Kuwait hosted the first pledging conference on Syria, international donors pledged more than $1.5bn to help civilians affected by the conflict in Syria. March 2013: LAS Ministerial Council adopted resolution 7595 (attached) to recognize SOC as the "sole legitimate representative" of the Syrian people and called on the SOC to establish an executive body to take up Syria's seat. April 2013: Abu Bakr al-Baghdadi, leader of the Islamic State, released a recorded audio message announcing Jabhat al-Nusra as an extension of al-Qaeda in Iraq and Syria. The leader of al-Nusra, Abu Mohammad al-Joulani, refused the merger. Divisions among the jihadists emerged. - Hezbollah's involvement deepened when it led the ground assault on Al-Qusayr, a Sunni town in Homs province by the Lebanese border. August 2013: The Assad regime was accused of using chemical weapons in Eastern Ghouta to kill hundreds of civilians. The government denied using chemical weapons. President Obama sought congressional authorization for the use of force. September 2013: UN Security Council unanimously adopted resolution 2118 (attached) requiring the Syrian regime to dismantle its chemical weapons arsenal by mid-2014, and avoid military strikes. December 2013: US and Britain suspended "non-lethal" support for rebels in northern Syria after reports Islamist rebels seized some bases of Western-backed Free Syrian Army. January 2014: the Geneva II Conference on Syria was held in Montreux on January 22, and attended by 37 states, 4 organizations and both Syrian parties. Iran was invited by SG Ban Ki- Moon on January 19, the Opposition declared its refusal to attend if Iran was not excluded, the US viewed Iran's invitation "as conditioned on Iran's explicit and public support for the full implementation of the Geneva Communique"; Iran refused any preconditions to the talks, and refused to endorse the Geneva Communique specially the transitional governing body. February 2014: two rounds of negotiations to discuss: 1- ending violence and 2-combating terrorism, 3-transitional governing body, national institutions, and 4- national reconciliation and national debate. The Syrian government refused to discuss a transitional government and insisted on discussing combating terrorism. The talks came to a halt. May 2014: JSR Brahimi announced his resignation because of the lack of progress and failure to agree on an agenda. - Iran proposed a political settlement of four points; a comprehensive cease-fire at national level, forming a national unity government consisting of the regime and the internal Syrian opposition, by transferring presidential powers to the government whereby the government will enjoy wide-ranging powers in years to come, and preparation for presidential and parliamentary elections. - Syrian rebels withdrew from the Old City of Homs, under an Iranian brokered deal and facilitated by the UN, after three years of Syrian government bombardment and siege. June 2014: President Assad held presidential elections, he was re-elected for another seven-year term allegedly winning 88.7% of the votes. July 2014: UN Secretary-General announced the appointment of Staffan de Mistura as his Special Envoy for Syria (SE)- NOT as a joint envoy with LAS. August 2014: US-led coalition began its airstrikes against the Islamic State in Iraq and expanded its strikes to Syria the following month, focusing on the city of Raqqa. September 2014: SE held his first round of consultations with concerned capitals, since taking up his office, it included his a visit to Damascus where he met with President Assad, senior officials and the tolerated internal Syrian opposition. October 2014: SE focused on establishing a series of local ceasefires, "freeze zones", starting with Aleppo, which aimed at the de-escalation of violence and allowance of the return of normalcy to it. February 2015: SE briefed the Security Council members on the 17th, announcing Syria's willingness to halt all aerial bombardment over Aleppo for a period of six weeks. It was not clear when would the freeze go into effect, reporting that a date would be announced from Damascus. June 2015: Egypt hosted the second Syrian Opposition meeting in Cairo, which excluded the National Coalition and announced a new road map to resolve the crisis which did not abolish Assad's government. July 2015: SE announced that his office would facilitate intra-Syrian working groups to generate a "Syrian-owned framework document" on the implementation of the Geneva Communiqué. Main themes of the groups were Safety and Protection for All, Political and Constitutional Issues, Military and Security Issues, and Public Institutions, Reconstruction and Development. September 2015: Russia conducted its first airstrikes against IS in Syria. The US and the Syrian Opposition claim it is targeting rebel-held areas instead. October 2015: First meeting of International Syria Support Group (ISSG) took place in Vienna, it included China, Egypt, the EU, France, Germany, Iran, Iraq, Italy, Jordan, Lebanon, Oman, Qatar, Russia, Saudi Arabia, Turkey, United Arab Emirates, the United Kingdom, the United Nations, and the United States. They agreed on a nine-point plan, but still had substantial divisions on the future of Assad. It was the first time Iran and Saudi Arabia were brought to the same table. November 2015: Second meeting of the ISSG was held in Vienna adding LAS to its members. They set a time frame to prepare for a parallel ceasefire and political process by January 2016 that would lead to credible, inclusive and non-sectarian governance within six months, followed by the drafting of a constitution and elections within 18 months. Jordan was tasked to develop a list of groups and individuals identified as terrorists, and Saudi Arabia to hold a meeting to unify the Syrian opposition and prep for the talks with the government. December 2015: - Syrian political and armed opposition factions met in Riyadh, to agree on a common position to negotiate with Syrian government, and resulted in the formation of the High Negotiating Committee (HNC). The main Kurdish group was excluded, while Islamist hardliners such as Jaysh Al-Islam and Ahrar Al-Sham were present. - The Secretary General of the Organization of Islamic Cooperation (OIC) joined the follow-up meeting of the ISSG in New York, Saudi Arabia and Jordan briefed the group on their tasks. There was no agreement on the list of identified terrorists, especially with Russia's insistence on adding Ahrar Al-Sham to the list, which is considered pivotal to the unified Opposition bloc. - UN Security Council unanimously adopted resolution 2254 (attached) which reaffirmed the road map set out by the ISSG and urged the Support Group to apply pressure on the Syrian parties to put an immediate end to the indiscriminate use of weapons against civilians, and allow unimpeded access to humanitarian aid convoys. January 2016: the SE sent out invitations to the Syrian participants, in accordance with the parameters outlined in Security Council resolution 2254, to start on the 25th with proximity talks and had expected to last for six months. The HNC requested assurances of goodwill from the government as precondition to beginning of talks, such as release of prisoners or lifting of sieges. February 2016: Talks were delayed and lasted two days before they were suspended for three weeks. - The ISSG met on the margins of the Munich Security Conference and decided that humanitarian access will commence same week of meeting to besieged areas, and an ISSG task force would elaborate within one week modalities for a nationwide cessation of hostilities. - The US and Russia announced the adoption of the terms for a cessation of hostilities in Syria, and proposed that the cessation of hostilities commence at 00:00 (Damascus time) on February 27, 2016. The cessation of hostilities does not apply to "Daesh", "Jabhat al-Nusra", or other terrorist organizations designated by the UN Security Council. - The Security Council endorsed the announcement in its resolution 2268 (attached). March 2016: SE announced March 9 set as target date of resumption of talks in Geneva. On March 14, SE resumed the intra-Syrian proximity talks in Geneva, which mainly discussed procedural matters to reach a shared list of principles and relied on Security Council resolution 2254 as its agenda. - SE briefed the Security Council on the cessation of hostilities which lowered overall levels of violence and more than 238,000 people had been reached with humanitarian aid. - On the same day, President Putin announced the withdrawal of most Russian forces from Syria, after it had largely fulfilled their objectives in Syria, and SE stated that it would have a positive impact on the negotiations. - On March 17, the PYD announced the establishment of a federal system in Kobane, Afrin and Cizire cantons in northern Syria, and its Constituent Assembly of the Democratic Federation of Northern Syria-Rojava (DFNS) announced its final declaration. Both the Syrian government and other opposition affiliates denounced the plan, as well as the United States. - On March 24, the SE ended the first round by submitting a paper on the commonalities between the Syrian sides regarding the future of Syria and would help structure the next round that would address political transition. - Syrian government forces retook Palmyra from the Islamic State, with Russian air assistance. April 2016: The SE paid visits to Amman, Beirut, Damascus and Tehran ahead of the new round of talks. - The third round of proximity talks were set to start on April 13, which coincided with the parliamentary elections in the government-controlled areas in Syria. The SE met with the High Negotiations Committee delegation (Syrian Opposition) in Geneva and was expected to meet with the Syrian Government delegation within the following days. - During the 13-27 April round of negotiations, the SE developed a Mediator's Summary that identified eighteen points necessary to move forward on political transition arrangements. - on April 28, airstrikes in Aleppo on al-Quds hospital supported by both Doctors Without Borders and the International Committee of the Red Cross, which killed dozens of civilians and medical personnel. May 2016: The Security Council adopted unanimously resolution 2286 (attached) which called for the protection of civilians and medical facilities during armed conflict. - On May 4, the US-Russia brokered a 48-hour ceasefire in which helped reduce the violence, and was later extended for another 72 hours. - On May 9, France held a ministerial Friends of Syria meeting in "Paris Format", attended by the United States, Germany, the United Kingdom, Italy, the European Union, the United Arab Emirates, Saudi Arabia, Qatar, Turkey and Jordan, and issued a statement that called on the resumption of negotiations, unimpeded access of humanitarian assistance and the implementation of international law obligations to the protection of civilians. - Later on the same day, the United States and Russia issued a joint statement on Syria to reconfirm their commitment to intensify their efforts to implement a nationwide ceasefire and promote humanitarian assistance in accordance to security council resolution 2254. - On May 17, the fourth meeting of the ISSG took place in Vienna and reaffirmed its determination to strengthen the cessation of hostilities, to ensure full and sustained humanitarian access in Syria, and to ensure progress toward a peaceful political transition. Australia, Canada, Japan, the Netherlands and Spain joined the group. June 2016: The SE announced that the time is not yet right for a resumption of the intra-Syrian talks because of the escalation of violence in Aleppo, Idlib, Latakia and other rural areas around Damascus, but the intention is to begin an official third round as soon as possible. - Riad Hijab, the Coordinator of the Opposition High Negotiations Committee, proposed a nationwide truce throughout the month of Ramadan. - On June 16, Jan Egeland Advisor to the Special Envoy for Syria announced that 16 of the 18 besieged areas have been reached since the humanitarian taskforce started in late February. - On June 21, the SE briefed the United Nations General Assembly on the situation in Syria regarding the cessation of hostilities and humanitarian assistance access, as for the resumption of talks, it is yet to be decided and the OSE currently holds technical meetings with the parties on core issues. July 2016: - On July 6, the Syrian army declared a three-day nationwide "regime of calm" in respect to Eid al-Fitr holidays nonetheless pro-regime forces continued to engage in clashes and airstrikes across the country, particularly near the flashpoints of Damascus and Aleppo City. - On July 14, U.S. Secretary of State John Kerry met with Russian President Vladimir Putin in Moscow to discuss a proposal for bilateral military cooperation in the Syria; The proposal calls for the establishment of a 'Joint Implementation Group' (attached) based in Amman, Jordan to "support deliberate targeting" of Syrian Al-Qaeda affiliate Jabhat al-Nusra and "maximize independent but synchronized efforts" against ISIS in Syria, according to a draft memorandum leaked by the Washington Post. - On July 25, Stephen O'brien, the Under Secretary-General for Humanitarian Affairs and Emergency Relief Coordinator, briefed the security council (attached) on the deteriorating humanitarian situation in Aleppo due to the escalation of violence over the Castello Road, the last access route in and out of eastern Aleppo, and the continuous attacks on medical facilities. O'brien called on the security council not to allow turning Aleppo into another besieged area where 250,000 to 275,000 people reside, and called to establish a weekly, 48-hour humanitarian pause to enable humanitarian aid deliveries across borders. - On July 28, the Russian Minister of Defense Sergei Shoigu announced, right after the Syrian government announced it has cut off the Castello Road and encircled the city of Aleppo, setting up three humanitarian corridors in Aleppo City to allow in food and medical aid, and help people flee the besieged city; the fourth corridor would be established in northern Aleppo near the Castello Road to allow the withdrawal of armed insurgents, and appealed to the Syrian government to provide guarantees to the amnesty provided to rebels to lay down their weapons. - On the same day, Abu Mohammed al-Julani, Jabhat al-Nusra's Leader announced split from al- Qaeda and mentioned that its new name would be Jabhet Fateh al-Sham, in order to get the group off the terrorist list and "to remove the excuse used by the international community – spearheaded by America and Russia – to bombard and displace Muslims in the Levant: that they are targeting al-Nusra Front, which is associated with al-Qaida". - On July 29, the SE commented on the Russian initiative in a press stakeout, that it should take into consideration a few improvements such as putting the 48-hour humanitarian pause into place on a sustainable basis irrespective of the humanitarian corridors; and suggested "to actually leave the delivery of aid through corridors to the UN and its partners"; and stressed that civilians should leave voluntarily, and given the option of leaving to areas of their own choice. August 2016: - On August 1, a Russian helicopter was downed near Saraqeb, in rebel-held Idlib province, on its way back to Russia's main air base in Hmyeim in the western province of Latakia, killing the five Russian military personnel on board. The downing of the helicopter marked the single deadliest event for Russia since its air campaign began in Syria on September 29, 2015. No group claimed the shooting down of the helicopter. - Since then, Russian warplanes conducted retaliatory airstrikes against several small opposition-held areas in the vicinity of Saraqeb. Syrian rebels accuse Russia of using incendiary munitions while conducting airstrikes against Idlib City on August 7, suggesting that Russia intended to achieve punitive and deterrent effects against opposition forces in the province. - In the early weeks of August, rebel forces launched a major assault, known as the "battle for Aleppo", on government-held southwestern towns of Aleppo City, to break the siege, and control supply lines in the south connected to eastern Aleppo. They claimed breaking the siege and capturing Ramouseh Artillery Academy, parts of the cement plant and Khan Touman-Ramouseh road. Intense fighting between warring parties continues to claim control over previously lost vicinities. - On August 9, Russian President Vladimir Putin met with Turkish President Recep Tayip Erdogan in St. Petersburg, after the Turkish President officially apologized for the downing of a Russian military aircraft on June 27, 2016, and announced during a press conference that they discussed lifting of Russia's ban on imports of Turkish products, resumption of charter flights, the Turkish Stream project, Syrian settlement, and anti-terrorism efforts. - On August 10, Lieutenant-General Sergei Rudskoi, a senior Russian Defence Ministry official, announced a daily three-hour ceasefires in Aleppo, starting August 11, to allow humanitarian convoys enter the city safely, and would run from 10 a.m. to 1 p.m. local time. - On August 16, the Russian Ministry of Defense announced that Russian aircrafts took off from Iranian airbase Hamedan to carry out airstrikes on ISIS and Jabhat al-Nusra-held facilities in the provinces of Aleppo, Idlib and Deir ez-Zour. - On August 18, the SE adjourned the HTF meeting as humanitarian convoys could not reach any of the besieged towns during the month, and called for at least a 48 hour humanitarian pause in Aleppo to deliver UN humanitarian assistance, through the Castello Road, to all parts of Aleppo City. - Also, on August 18, the Syrian government forces, unprecedentedly, launched strikes against Kurdish forces in Hasakeh in Northern Syria, after pro-government National Defense Forces (NDF) were engaged in clashes with the military wing of the Kurdish Workers Party, known as Asayish. The Syrian government claimed that "Asayish had escalated their acts of provocation attacking state establishments, stealing oil and cotton, disrupting examinations, carrying out abductions, and causing a state of chaos and instability, in addition to targeting positions of the Syrian Arab Army which required a suitable response by the Army as it targeted the sources of artillery fire and the gatherings of armed elements responsible for these criminal actions." - On August 19th, while the Kurdish fighters pushed back government forces and their allies, the Pentagon threatened to shoot down Syrian government aircrafts as they pose a threat to the US Special Forces deployed in the Kurdish People's Protection Units (YPG) area. - On August 21, it was announced that a truce agreement had been reached between YPG and NDF, through Russian mediation, to start on August 21, 2016 at 17:00, which involved evacuating the wounded and transporting them to hospitals in Qamishli, and restore the situation to how it was prior to the clashes and hold talks on August 22 to resolve the remaining unresolved issues. - On August 22, most likely the ceasefires agreement failed as fighting escalated. - On August 24, Turkey and the International Coalition Air Forces launched "Operation Euphrates Shield" offenses to support the Free Syrian Army aligned with U.S.-backed Syrian Democratic Forces SDF against IS militants in Jarablus, in northern Syria. - On August 26, U.S. Secretary of State John Kerry and Russian Foreign Minister Sergei Lavrov, addressing a joint press conference after their meeting in Geneva, announced that they failed to reach a breakthrough deal on military cooperation and a nationwide cessation of hostilities in Syria, saying they still have issues to resolve before an agreement could be announced. - On August 27, Kurdish militias targeted Diyarbakir airport in southeast Turkey, near the borders with Syria. Turkey retaliated by warplanes and artillery on targets held by Kurdish-backed forces the following day, despite US pentagon's criticism of the fighting. September 2016: - On September 4, Turkish Prime Minister Binali Yildrim announced that Turkish military forces and Ankara-backed Free Syrian Army (FSA) had successfully purged the border region, from Azaz to Jarablus, from "terrorist organizations." - On September 9, the US and Russia reached a deal which called for a nationwide ceasefire in Syria, and unimpeded humanitarian access to all besieged areas starting on September 12th. If sustained for seven continuous days, the U.S. and Russia would establish a Joint Implementation Center (JIC) in order to share intelligence and coordinate airstrikes against both ISIS and Jabhat Fateh al-Sham (formerly Jabhat al-Nusra). - On September 21, the cessation of hostilities deal was implemented with regular violations, while the Syrian government continued to block humanitarian access to opposition-held districts of Eastern Aleppo City despite the agreement. - On September 17, the US-led coalition accidentally launched an air strike on Syrian government forces in Deir ez-Zour. - On September 19, a UN humanitarian convoy was shelled near Urum al-Kubra near Aleppo, killing 20 humanitarian aid workers and drivers, and destroying 18 out of 31 trucks. The US blamed Russia and the Syrian government for the attack; the latter declared unilaterally the end of the ceasefire agreement. - On September 20, the UN temporarily suspended its humanitarian aid to Syria after the attack, while international powers failed to reach a consensus to restore the ceasefire during an acrimonious UN Security Council Meeting on September 21st as well as two separate meetings of the International Syria Support Group on September 20 and September 22. - On September 22, the Syrian government announced a new military offensive in the rebel-held eastern Aleppo, and further escalation in a bombing campaign by Russian and Syrian airstrikes that had already intensified the day before. - On September 25, the Security Council Meeting discussed the recent escalation of violence in Aleppo after the Syrian government announced its intention to retake all of Aleppo City, and the SE called on the Security Council to "to press for a cessation of violence, and for the protection of civilians, and the civilian infrastructure; secondly to press for weekly 48-hour pauses in the fighting to ensure that the United Nations and its partners can reach eastern Aleppo, without preconditions from either the Government or the Opposition; and thirdly to press for medical evacuations of urgent cases." - On September 27, the Syrian government launched a large scale ground offensive in eastern Aleppo, and state media announced that it recaptured the central district of Al-Farafirah northwest of the Aleppo Citadel. - On September 29, the YPG set conditions to participate in operations to seize IS-held Raqqa City: the US provides arms to the YPG, recognizes its autonomy of the Federation of Northern Syria, and ensures that the Syrian Kurds are officially invited to participate in peace talks. October 2016: - On October 1, continuous airstrikes in eastern Aleppo damaged a major hospital codenamed M10, which was partially closed because of the raids. - On October 2, Stephen O'brien, the Under Secretary-General for Humanitarian Affairs and Emergency Relief Coordinator, urged warring parties and their supporters to bring about a cessation of all hostilities, a medical evacuation system for eastern Aleppo, and regular unimpeded humanitarian access to eastern Aleppo, and he reiterated his plea to the Security Council for a 48-hours weekly humanitarian pause in fighting, at the very least. - In an official statement, the Syrian Army offered amnesty to fighters and their families to leave Aleppo under guarantee of safe passage to other rebel-held areas, after the Syrian regime forces recaptured strategic areas on the northern outskirts of the city. - On October 3, the EU announced an emergency humanitarian initiative for Aleppo, in cooperation with the United Nations and civil society organizations, in order to facilitate the urgent delivery of basic life-saving assistance to civilians in eastern Aleppo, and ensure medical evacuations with focus on women, children and the elderly. The EU has mobilized 25 million euros to support its humanitarian partners' response to cover medical, water and sanitation, and food assistance in Aleppo. The HNC issued a statement welcoming the European initiative to protect civilians in Aleppo. - The Security Council began negotiations over a draft resolution, circulated by France and Spain, which demanded all parties to the Syrian conflict "implement and ensure full implementation of cessation of hostilities, including an end to all aerial bombardments", and called on the US and Russia to "undertake joint efforts to stabilize the situation in Syria, with special measures for the Aleppo region", as well as the UN Secretary-General to propose options for a UN-supervised monitoring mechanism of the ceasefire and to "take further measures" in case of non-compliance of any party, without invoking chapter 7 of the UN Charter. The French Foreign Minister Jean-Marc Ayrault headed to Moscow and Washington to push for a vote on the draft resolution. - The United States suspended talks with Russia on trying to end the violence in Syria and accused Moscow of not complying with its commitments under the ceasefire agreement and would withdraw all personnel that were dispatched to prepare for military cooperation with Russia. - On October 4, Prince Zeid Ra'ad, the UN High Commissioner for Human Rights, warned over the use of incendiary weapons in Syria, and demanded bold initiatives such as limiting the use of the veto by the permanent members of the Security Council to refer the situation in Syria to the International Criminal Court (ICC). Russia rejected Zeid's call. - The Russian Defense Ministry declared its deployment of S-300 missile system to its Tartus naval base in Syria. - On October 6, the SE offered in a press conference to escort up to 1000 al-Nusra fighters to bring an end to the bombardment by Russian and Syrian forces to Idlib or anywhere else of their choice. While the Russian Defense Ministry announced it would shoot down US-led coalition jets if the US launches airstrikes against pro-government forces in Syria, after American officials had discussed using limited airstrikes to force government forces to halt its raids on Aleppo. - On October 7, Russia called for a Security Council emergency meeting to hear the SE's briefing (attached) on the situation in Aleppo, while the Russian Parliament ratified Moscow's deal with Syria on its "indefinite" deployment of forces. - On October 8, the Security Council held a meeting on Aleppo, and voted on the Russian-drafted resolution calling for the revival of the ceasefire deal, without mention of ending military fights in the city, and on the French-drafted resolution. The French draft received eleven votes in favor, China and Angola abstained, while Russia and Venezuela voted against. The Russian text only received four votes in favor of China, Egypt and Venezuela, Angola and Uruguay abstained, while the remaining nine council members voted against. - On October 9, France announced its intention to call the ICC for war crimes investigation in Syria, and shall contact the ICC Prosecutor on how to launch these investigations, putting into consideration that the only way is through the Security Council referral, which had been vetoed before by Russia in May 2014. - On October 13, the Deputy Special Envoy for Syria Ramzy Ezzeldin Ramzy confirmed the Syrian Government's approval of the October aid plan and for convoys to reach 25 of 29 besieged and hard-to-reach areas across Syria, but not to eastern Aleppo and three parts of the rural Damascus province. - On October 15, US Secretary of State John Kerry hosted a meeting on Syria in Lausanne, with the participation of Russian Foreign Minister Sergei Lavrov and seven foreign ministers from the region, from Iran, Iraq, Saudi Arabia, Turkey, Qatar, Jordan and Egypt, with the presence of the SE. The meeting failed to reach a joint statement on how to end the bombardment of Aleppo or on the aid delivery to the besieged towns. - On October 16, the UK's Foreign Secretary Boris Johnson held a meeting with his US, French and German counterparts and "like-minded" Gulf Arab states on the Syrian conflict in London. The UK and the US announced their consideration of imposing more sanctions against Russia and the Syrian Government to halt their ongoing raids on Aleppo. - On October 17, the European Council condemned the Syrian regime and Russia for their deliberate and indiscriminate bombardment of civilians and infrastructure in Eastern Aleppo, and called for a monitored cessation of hostilities, lift of sieges, and a nationwide sustainable humanitarian access. - On October 18, the Russian Minister of Defense Sergei Shoigu announced the cease of Russian and Syrian airstrikes on Aleppo to hold an 8-hour humanitarian pause on October 20th, in order to allow civilians and medical evacuations through six humanitarian corridors, and expected militants would withdraw with their weapons through two corridors, one via the Castello Road and the other near the souq al-Hai area in the south of the city. It was later announced that the eight-hour pause will be extended to eleven hours for four days. The armed opposition groups (AOGs) rejected the proposal in a joint statement claiming that "the initiative came at the same time as forced displacement operations are being carried out by the Assad regime in the Damascus suburbs of al-Mouadamiya, Qudsiya and al-Hama, and before that in Daraya." - On October 20, in conclusion of the EU summit, the EU failed to reach an agreement on imposing sanctions on Russia for the escalation of violence in Aleppo, and stated that "the EU is considering all available options should the current atrocities continue." The unilateral ceasefire took effect, and the Syrian Army declared that it would last for three days while artillery exchanges erupted around a crossing point near the rebel-controlled Bustan al-Qasr district shortly after the pause began. The Secretary-General and the SE briefed the General Assembly in an informal session on the situation in Syria, in response to an initiative led by Canada, after the Security Council failed to take action to end the aerial bombardment on Aleppo and revive peace efforts. - On October 21, the United Nations Human Rights Council held a special session on the deteriorating situation of human rights in Aleppo, upon the request of Britain (letter attached) that was submitted on behalf of a core group of 11 Western and Arab states. The Council adopted a resolution by a 24 in favor vote, seven against and 16 abstentions. It urged "the immediate implementation of the cessation of hostilities, and demanded that the regime and its allies put an immediate end to all aerial bombardments of and military flights over Aleppo city. The Council demanded that all parties, in particular the Syrian authorities and its supporters, promptly allowed rapid, safe, unhindered and sustained humanitarian access, including across conflict lines and borders." The Council further "requested the Independent International Commission of Inquiry on the Syrian Arab Republic to conduct a comprehensive, independent special inquiry into the events in Aleppo, and identify all those responsible for alleged violations and abuses of international human rights law. It further requested the Commission of Inquiry to support efforts to ensure that perpetrators of alleged abuses and violations be held accountable, and to provide a full report of the findings of its special inquiry to the Human Rights Council no later than its thirty-fourth session." - On October 22, the humanitarian pause expired without any evacuations made and without further renewal despite the UN request. No medical evacuations had been made as no security guarantees had not been granted as requested by the UN. - On October 23, Turkey intensified its strikes targeting IS militants and Kurdish YPG forces in the town of al-Bab, in an attempt to sweep them away from its borders. The Turkish-backed FSA gained control over three areas of Tuways, al-Gharz and Tlatinah south of Akhtarin in northern Aleppo two days later. - On October 25, Russian Deputy Foreign Minister Mikhail Bogdanov stated Moscow's willingness to restore the ceasefire in Aleppo and that the Western-backed opposition forces should be separated from terrorist groups in order to be able to move forward; after the UN had blamed all parties for the failure of evacuating injured people in Eastern Aleppo during the three-day ceasefires and called for "a permanent and comprehensive ceasefire so that life-saving humanitarian activities, including medical evacuations, can resume," meanwhile the Syrian Ambassador to Moscow ruled out any opportunity to restore the ceasefires. - On October 26, a school in the village of Haas, in rebel-held Idlib, was hit by a raid of airstrikes, causing the death of twenty-two children and six teachers. The UN Secretary-General called for an immediate investigation on this attack, as it could amount as war crimes if deliberate. Russia denied its responsibility and claimed that the damage was not consistent with an airstrike. - On October 27, Virginia Gamba, the head of the UN-OPCW Joint Investigative Mechanism, presented the mechanism's findings to the Security Council. The report indicated that of the nine cases the JIM investigated, the Syrian regime used chlorine gas against civilians in three cases and the IS used mustard gas in one case. In the remaining five cases, the JIM investigated allegations that the government dropped chlorine bombs in rebel-held areas. While the JIM could not make a conclusive determination in three of these five cases, it was able to establish that government airstrikes had occurred and the presence of a toxic substance, but it was unable to fully determine the link between the two, or the actors responsible. Russian Ambassador Vitaly Churkin questioned the JIM's findings, and expressed reservations over the US-draft resolution to extend the mandate of the mechanism for another year, which would end on 31 October 2016. - The EU added ten top Syrian officials to its sanctions list who are held responsible for "violent repression against the civilian population in Syria." - On October 28, Syrian rebels relaunched Aleppo counter-attack aiming to break the siege imposed on Eastern Aleppo. The factions included the FSA and Jaish al-Fath targetting government-held Western Aleppo. - Syrian Foreign Minister Walid Muallem met with his Russian and Iranian counterparts in Moscow to discuss counterterrorism, the cessation of hostilities and improvement of humanitarian operations, and the resumption of the intra-Syrian talks. The three ministers held a joint press conference following their meeting. - On October 30, SE condemned Syrian rebels for the indiscriminate shelling of civilian areas in Western Aleppo, raising the number of casualties in the last 48 hours. - On October 31, the Security Council extended the mandate of the UN-OPCW JIM until November 18, 2016. November 2016: - On November 1, in a teleconference with the leaders of the Russian Armed Forces, Russian Defense Minister Sergei Shoigu mentioned that Russia had halted air strikes on eastern Aleppo for 16 days, following western criticism over a Russian-Syrian government assault that killed civilians and destroyed infrastructure. - On November 2, DM Shoigu announced that it would enforce a 10-hour humanitarian pause in Aleppo on November 4, to allow civilians and fighters to exit the city through eight safe corridors. - On November 4, despite the announced unilateral ceasefire in Aleppo, there were no sign of civilians or fighters leaving the city, and opposition fighters vowed to continue fighting to break the siege. - On November 6, the SDF declared the launch of Operation "Wrath of the Euphrates" in the IS capital of Raqqa, which aimed at surrounding and isolating the city as an initial phase, in coordination with the US-led coalition airstrikes. The SDF had rejected any Turkish role to liberate the city. - On November 8, the Russian Defense Minister Shoigu announced that the first attack from the Admiral Kuznetsov, the aircraft carrier, and heavily armed escort ships were to bomb rebel positions in Aleppo. - On November 10, Jan Egeland, Advisor to the Special Envoy for Syria, declared in a press stakeout following the weekly HTF meeting that Eastern Aleppo had run out of food rations, and that the UN had proposed an initiative of four elements which included delivery of food and medical supplies, medical evacuations and access for health workers. - On November 11, the OPCW Executive Council condemned all parties for the use of chemical weapons in Syria, after voting on a US-tabled text in a closed session. The text was supported by 28 members, including Germany, France, the United States and Britain; it was opposed by Russia, China, Sudan and Iran, and there were nine abstentions. - On November 15, Russia launched its "major operation" targeting the IS and Jabhat al-Nusra's positions in Idlib and Homs provinces. Heavy airstrikes and barrel bombs pounded Eastern Aleppo after the pause declared by Russia and the Syrian Government on October 18. It is considered the first mission operated from the aircraft carrier Admiral Kuznetsov. - The Third Committee of the UN General Assembly adopted a draft resolution tabled by Saudi Arabia on the human rights situation in Syria, by a vote of 116 in favor, to 15 against with 49 abstentions. It called upon the Syrian regime and the IS to cease using chemical weapons, and stop their attacks on civilians. - On November 17, the UN Security Council adopted the US-draft resolution to extend the mandate of the UN-OPCW Joint Investigative Mechanism to 18 November 2017. - On November 20, Syrian Foreign Minister Walid Muallem held talks with the SE in Damascus, on the latest escalation of violence, the targeting of medical facilities and infrastructure, and the humanitarian initiative in Eastern Aleppo. The UN proposal of the withdrawal of al-Nusra fighters while maintaining the opposition's local administration of Eastern Aleppo; the proposal was rejected by the Syrian Government and called it a violation of "national sovereignty". - On November 23, the French Minister of Foreign Affairs Jean Ayrault announced that France would hold a meeting on Syria early December 2016. - On November 24, Jan Egeland Advisor to the Special Envoy for Syria briefed the press on the HTF meeting and the assistance deliveries of the month of November, not being able to reach besieged areas because of the absence of government approvals for convoys to enter and the escalation of violence. Egeland stated that the UN had received written approvals of the AOGs in eastern Aleppo and Russian support of the UN four-point plan, and still waiting for the government's approval. - On November 27, the rebels in Khan al-Shih town, in the outskirts of Damascus, handed in their weapons, as part of a local agreement with the Syrian government to withdraw to rebel-held Idlib province, so as government siege would be lifted. It was the only town not under government control on a major supply route from Damascus to Quneitra, in southern Syria. - On November 29, Egypt, New Zealand and Spain put in blue their draft resolution calling to put an end to all attacks on Aleppo, and allow unimpeded humanitarian access for the period of 7-days with consideration of further extension. The draft was later vetoed on 5 December by Russia and China, Venezuela voted against, and Angola abstained. It is Russia's sixth veto on a Syria draft resolution, and China's fifth veto. - After the Acting High Representative for Disarmament Affairs Kim Won-soo briefed Council members during Syria's chemical weapons consultations; the P3 announced they would circulate a draft resolution to impose sanctions on Syria for its use of chemical weapons against its own population. - On November 30, upon the request of France and the UK to hold an emergency meeting on Aleppo, SE Staffan de Mistura, USG Emergency Relief Coordinator Stephen O'brien and UNICEF Regional Director Geert Cappelaere briefed the Security Council on the situation in Aleppo, who agreed on the growing number of civilians fleeing eastern Aleppo and the dire need for safe humanitarian access. December 2016: - On December 1, ten AOGs announced the formation of 'Jaysh Halab' in Eastern Aleppo, in an attempt to unite their efforts to lift the siege and restore the districts where the pro-government militias took over in northeast and east Aleppo. It was led by Abu Abdul Rahman Nour, a senior commander in 'Jabhat al-Sham'. While Jan Egeland, Advisor to the Special Envoy for Syria, and the SE briefed the press on the humanitarian situation in Aleppo after the HTF meeting; they mentioned that over 400,000 IDPs are in west Aleppo, and UN convoys reached reached all towns under the Four-Towns Agreement, including Madaya, al-Foua and Kafraya, and Zabadani, and that the December Plan was yet to be approved by the Syrian government. - On December 3, the Syrian armed forces and its supporting militias advanced into east Aleppo, taking over 60 percent of the city that was once under rebel control since mid-2012. More than 80,000 civilians fled the area since the beginning of the regime's offense on November 15. - On December 7, AOGs called for a five-day ceasefire in Aleppo, and medical and civilian evacuations without mentioning the withdrawal of their fighters as demanded by Moscow and Damascus. Meanwhile, U.S. Secretary of State John Kerry met with Russian Foreign Minister Sergei Lavrov in Germany to discuss the evacuation of opposition-held districts of Eastern Aleppo, and no agreement was reached. While leaders of Canada, France, Germany, Italy, the UK and the United States released a joint statement on the situation in Aleppo calling for an immediate ceasefire and the resumption of political negotiations. - On December 8, the SE briefed the Security Council in closed consultations after the Russian announcement that it paused its operations in eastern Aleppo to allow the evacuation of civilians. Jan Egeland had said, after the weekly HTF meeting, that the co-chairs are "poles apart" on a united humanitarian diplomacy. IS launched a major offensive on Palmyra, seizing a number of gas fields in the north and few mountains in the south. - On December 9, the General Assembly adopted the Canadian-drafted resolution A/RES/71/130, which calls for an immediate cessation of hostilities and the implementation of resolutions 2268 and 2254. The resolution passed by a vote of 122 to 13, with 36 abstentions. Russia, Iran and China opposed the resolution. - On December 10, Paris hosted a meeting of "like-minded" counterparts on Syria; it brought together US Secretary of State John Kerry, German Foreign Minister Frank-Walter Steinmeier, British Foreign Secretary Boris Johnson and Turkish Foreign Affairs Minister Mevlut Cavusoglu, along with Qatar, the United Arab Emirates, Jordan and Saudi Arabia. They discussed the humanitarian situation, and called for a ceasefire and a post Aleppo plan, as Syrian government forces neared victory over rebels there. - On December 11, ISIS recaptured the city of Palmyra in Eastern Homs Province forces despite heavy air support provided by Russia. - On December 13, the United Nations Secretary-General Ban Ki-moon briefed the Security Council on the situation in Aleppo, the growing number of IDPs and allegations of torture and executions. Meanwhile, AOGs agreed to evacuate their remaining positions in eastern Aleppo after the Syrian government recaptured the city and following an agreement between Russia and Turkey. The evacuation was initially scheduled to take place on 14 December, but was delayed after Iran called for simultaneous evacuations from the besieged Shi'a-majority towns of Fu'ah and Kafraya in Idlib Province. - On December 15, the LAS held an emergency meeting at the level of representatives, based on Qatar's request, and adopted resolution 8105 condemning the attacks on civilians in Eastern Aleppo. - On December 19, the Security Council unanimously adopted the French-drafted resolution 2328 which demanded that the UN and other relevant agencies to carry out adequate and neutral monitoring of evacuations from eastern Aleppo, ensure the deployment of staff members for this purpose, and emphasized that the evacuations of civilians must be voluntary and to final destinations of their choice. Also, the LAS Ministerial Council welcomed resolution 8106 reiterating the necessity to establish a full cease-fire in Aleppo in accordance with the Security Council resolution 2328, and condemned terrorism in all its forms and crimes committed against civilians by ISIS, Fateh al- Sham Front, and that actions of both the Syrian regime and other militant groups may amount to war crimes. - Following the adoption of resolution 2328, the Office of the Special Envoy for Syria announced "the intention of the United Nations to convene the intra-Syrian negotiations mandated by Security Council resolution 2254 in Geneva on 8 February 2017." - On December 20th, the foreign and defense ministers of Russia, Turkey and Iran held parallel trilateral meetings in Moscow, despite the assassination of the Russian Ambassador to Turkey Andrey Karlov on December 19, and adopted the "Moscow Declaration" by which they agreed to act as guarantor powers for a peace accord between the Syrian government and the opposition. - On December 21, the UN General Assembly adopted a resolution establishing a mechanism to assist in the investigation of serious crimes committed in Syria since 2011. The resolution received 105 votes for, with 52 abstentions, and 15 votes against (Algeria, Belarus, Bolivia, Burundi, China, Cuba, DPRK, Iran, Kyrgyzstan, Nicaragua, Russia, South Sudan, Syria, Venezuela, and Zimbabwe). The UN Secretary-General submitted the report of the UN Headquarters Board of Inquiry that was established to investigate the humanitarian convoy incident in Urum al-Kubra on 19 September 2016., which stated that there is no enough evidence to conclude that the convoy was deliberately attacked. - On December 22, the Syrian army announced its full control over Aleppo, after the evacuations of the remaining rebel fighters. Evacuations had faced many delays because of Iran's demands to evacuate 1500 individuals from the opposition-besieged towns of Zabadani and Madaya. On the following day, the Russian military deployed a battalion to clear the city from improvised explosive devices. - On December 23, USG Stephen O'brien briefed the Security Council, upon the request of France, "on the modalities of the evacuation of civilians and delivery of humanitarian aid in East Aleppo." Meanwhile, Syrian government forces bombed the water pumping station during its raid on opposition-held Wadi Barada, disrupting water supply to Damascus. - On December 26, Kazakhstan accepted the Russian proposal to host peace negotiations between the Syrian government and opposition forces to find a solution to the Syrian crisis, in January 2017. - On December 27, the Russian and Turkish foreign ministers agreed to implement a nationwide ceasefire in Syria, separate moderate opposition groups from UN designated terrorist groups, and prepare for the Astana talks. - On December 28-30, the DFNS met in the city of Rmeilan to approve the draft constitution, known as the social contract, which was adopted on January 29, 2014 to form its administrative system and prepare for elections. Kurdish leaders voted to drop the word "Rojava" from the official name to include other ethnic and religious components in northern Syria. - On December 29, Russia and Turkey submitted the countrywide ceasefire plan to the warring parties, which had taken effect at midnight on 30 December 2016 Damascus time. - On December 31, the UN Security Council adopted resolution 2336 in support of the Russian- Turkish agreement and the meeting to be held in Astana on 23 January 2017. January 2017: - On January 2, the Russian and Turkish air raids targeted IS militants in northern Syrian city of al-Bab; while 10 rebel factions threatened they would suspend talks regarding Astana until the ceasefire is fully implemented because of "major and frequent violations" in the rebel-held areas of Wadi Barada and Eastern Ghouta near Damascus. - On January 5, the SE welcomed the nationwide ceasefire, and the Security Council resolutions on Aleppo and Astana talks, in a press briefing after the weekly HTF meeting. Jan Egeland Advisor to the Special Envoy for Syria, voiced disappointment over the government's denied aid access to 5 out 21 locations including places in Rural Damascus, Homs and Hama. - On January 6, the Russian military started to cut down on its presence in Syria, Military Chief Valery Gerasimov mentioned that the aircraft carrier Admiral Kuznetsov would be the first to withdraw from the Mediterranean. - On January 8, Syrian government airstrikes resumed on Wadi Barada after failing to reach an agreement with opposition groups to repair the damaged water springs. Later on January 14th, the retired army officer Ahmad al-Ghadban who negotiated the deal to restore the water was killed amid heavy clashes between rebels and pro-regime forces. Both sides accused each other. - On January 12, the US imposed sanctions on 18 senior Syrian officials who were connected to the development and use of chemical weapons including chlorine gas against civilians. It marked the first time the US sanctioned Syrian military officials. While Russia and Turkey signed an agreement to coordinate their airstrikes against terrorists in Syria. - On January 13, the Syrian state television accused Israel of targeting Mezzeh Airbase outside of Damascus. - On January 14, IS launched a major offensive against pro-regime forces (Hezboallah) in Deir al-Zor Province, cutting the communication between the military base and the city. - On January 16, the High Representative/Vice-President Federica Mogherini will host an international conference on the future of Syria in Brussels, which "aims to identify with regional partners common ground on the post-conflict arrangements and examine the scope for reconsciliation and reconstruction of Syria." - On January 19, an agreement was reached in Wadi Barada, allowing regime maintenance teams to enter the area to fix the water pipes and grant rebels amnesty or safe passage to opposition-held Idlib. - On January 20, IS militants destroyed Palmyra's Tetrapylon with only four of sixteen columns still standing, and the facade of its Roman Theatre. The UNESCO condemned the act as a new war crime. - Russia and Syria concluded a bilateral agreement on expanding and modernizing of the Russian Naval Facility in Tartus. The agreement extends the current lease for the next forty-nine years with automatic extensions and permits the simultaneous deployment of up to eleven warships to the port. - On January 23-24, indirect talks between the Syrian government and opposition were held in Astana; the delegations refused to sign the joint declaration issued by Russia, Turkey and Iran, on setting up a "trilateral mechanism" to monitor and enforce the ceasefire. The new US administration was invited, despite Iran's objection, and was represented by its ambassador to Kazakhstan. The UN SE was present, and hoped Astana talks would support the intra-Syrian negotiations to be held in Geneva in February. - On January 24, the Russian delegation shared its draft of the Syrian Constitution with the Syrian delegations, and advocated the creation of a Constitutional Committee consisting of members of both delegations. - On January 23-24, Finland and UN agencies hosted the Helsinki Conference on Supporting Syrians and the Region, which launched the 2017-2018 Regional Refugee and Resilience Plan (3RP). - On January 25, the US President Donald Trump called for establishing safe zones for refugees in Syria, after suspending visas for Syrians and other middle eastern states. President Trump later held telephone conversations with Saudi King Salman bin Abdul-Aziz and United Arab Emirates Armed Forces Deputy Supreme Commander Mohammed bin Zayed on January 29 to seek their support for his unidentified initiative. - On January 28-30, 1100 opposition fighters and 750 civilians evacuated Wadi Barada to Idlib Province, after reaching a reconciliation deal with pro-regime forces. The Syrian Forces reached Ain Fijeh spring to restore water to Damascus. - On January 30, the US delivered armored vehicles, medium and heavy weapons to SDF, in an attempt to isolate IS in al-Raqqa City. - On January 31, the SE briefed the Security Council in a closed session on the outcomes of the Astana talks and the upcoming intra-Syrian talks in Geneva, which was pushed to February 20. He mentioned if the Syrian opposition could not form an inclusive delegation by 8 February, he would select its representatives himself. The Council members welcomed the International Meeting on Syria in Astana, in a press statement. February 2017: - On February 6, high-level experts from Russia, Iran, Turkey, Jordan and the UN held their first technical meeting in Astana to discuss the implementation of the ceasefire mechanism, and cooperation on humanitarian issues; they agreed on the Concept Paper on the Joint Group. The Joint Group held its first meeting and managed to identify all areas controlled by IS and Jabhat Fatah al-Sham; the participants received two draft documents prepared by the Russians to be discussed in future Joint Group meetings, which are the Protocol to the Agreement on the mechanism to record violations of the cessation of hostilities in Syria announced on December 30, 2016 and the Procedure for imposing sanctions on violators, as well as the Regulation on Reconciled Areas. - On February 7, Amnesty International released its report (attached) on mass executions of as many as 13,000 detainees at Saydnaya Military Prison. Syrian authorities rejected the accusations. - On February 9, Russian airstrikes mistakenly kill three Turkish soldiers and injured eleven others near al-Bab city held by Turkish Armed Forces as part of Operation Euphrates Shield. Both sides agreed to strengthen their coordination. - On February 10-11, the HNC met in Riyadh and formed a delegation of 21 members, headed by Nasr al-Hariri; it included one representative each from the Cairo and Moscow groups. The HNC stated (Arabic statement attached) that the goal of the negotiations was a political transition under U.N. auspices in which Assad had no role in the future of the country. - On February 12, Turkish President Recep Erdogan stressed that the Operation Euphrates Shield aims to establish a five-thousand square kilometer 'safe zone' that includes Al-Bab, Manbij, and al-Raqqa City in Northern Syria. The safe zone would require the implementation of a no-fly zone, mentioning that he had discussed the issue with both the U.S. and Russia. - On February 13, the SE sent out invitations to the Syrian delegations for the intra-Syrian negotiations set to begin on February 23. - On February 15-16, the second round of talks took place in Astana a day later than scheduled; the opposition delegation was represented by only 9 armed groups from 14 groups which attended the first meeting; no direct meetings between the Syrian delegations were held and it ended without a final statement. The three guarantor states agreed to the Concept Paper on the Joint Group of the trilateral mechanism to observe the ceasefire, share information regarding the investigation of violations and promote confidence-building measures such as the release of detainees and abductees. - On February 17, a meeting between the "like-minded" states on Syria was held on the margins of the Bonn G20 Summit, and discussed Syria peace talks in Geneva. - On February 18, Turkey offered the US two proposals for an offensive against IS in al-Raqqa City that excludes the YPG. The preferred proposal calls for the insertion of opposition groups backed by Turkey into Tel Abyad in Northern al-Raqqa Province in order to advance against al- Raqqa City through a twelve-mile-wide corridor through terrain currently held by the SDF. The second proposal calls for opposition groups in Operation Euphrates Shield to advance more than one hundred miles from Northern Aleppo Province to Western al-Raqqa Province. - On February 21, the US CIA froze assistance to the FSA and its affiliated factions fighting in Northwestern Syria, after they came under an attack from Hay'at Tahrir al-sham HTS (successor of Jabhat Fateh al-Sham) in January. The aid included salaries, training, ammunition and in some cases guided anti-tank missiles. - On February 23, a fourth round of the intra-Syrian talks commenced in Geneva with no expectations of a breakthrough; the SE reiterated that that resolution 2254 sets the framework of the negotiations, which calls for the establishment of credible, inclusive and non-sectarian governance, and sets a timeline for drafting a new constitution and holding free and fair elections within 18 months. A day before in the ISSG Ceasefire Task Force meeting (CTF), Russia had called on the Syrian Government to halt aerial bombings during the discussions. - The Opposition groups backed by the Operation Euphrates Shield fully seized al-Bab in Northern Aleppo Province, after three months of clashes. - On February 24, the SE shared a paper on procedural issues, in bilateral meetings with the Syrian parties. The HNC held the Cairo and Moscow platforms responsible for the delay of direct talks, as they participated separately. - While Iraq conducted its first cross-border airstrikes against IS in Deir ez-Zour Province on the Syrian-Iraqi Border. The F-16 airstrikes were coordinated with the Syrian Government through a joint intelligence-sharing unit in Baghdad that includes Iraq, Syria, Russia, and Iran. Also, The U.S. provided intelligence in support of the operation. - On February 25, HTS claimed responsibility of a suicide attack on the State Security and Military Intelligence Offices in Homs City, killing at least forty pro-regime officers including Military Intelligence Branch Chief Brig. Gen. Hassan Dabul, so as to undermine the ongoing peace talks. The attacks prompted heavy airstrikes on al-Waer District, the Opposition's last strong-hold in the city. The HNC condemned the terrorist attack as per the Government's ultimatum. - On February 28, the UN Security Council voted on the French-British draft resolution which sought to ban the sale or supply of helicopters to the Syrian Government, and to blacklist 10 government and related entities involved in the production of chemical weapons. Nine countries voted in favor; Bolivia voted against the text, while Ethiopia, Egypt and Kazakhstan abstained. Russia casted its sixth veto backed by China. Britain and France had circulated the text in mid- December 2016, in response to the OPCW report findings proving government use of chlorine gas in three cases of the nine investigated cases. It was put on hold to asses US policy on Syria, the US later became a co-penholder after its unilateral sanctions on 18 Syrian senior officials on January 12. March 2017: - On March 1, the Independent Commission of Inquiry on Syria issued its report on the violations committed by warring parties in the last battle of eastern Aleppo, and considered the targeting of vital civilian infrastructure, withholding the distribution of humanitarian aid, and the use of civilians as human shields and forced evacuation agreements amount to war crimes. - On March 2, the Syrian forces backed by Russian airstrikes and Shi'a militias recaptured the city of Palmyra for the second time after heavy clashes. - On March 3, the fourth round of talks concluded with a political agenda for the upcoming round, which comprises of three baskets addressing the establishment of credible, inclusive and non-sectarian governance, drafting a new constitution, and holding free and fair elections within 18 months. A fourth basket was added upon the request of the Syrian Government to address "strategies of counter terrorism, security, governance and also medium-term confidence building measures." - On March 6, Russia announced a ceasefire in Eastern Ghouta until March 20, despite the continuation of airstrikes and mutual shelling. - On March 7, the US-allied SDF agreed to handover six villages near Manbij, on the frontline with Turkey-backed rebels to Syrian government control, under a Russian-brokered deal, in an attempt to stop further Turkish incursion. - On March 8, the SE de Mistura briefed the Security Council on the course of the talks, which aims to address the aforementioned baskets in parallel, and concluded that "nothing is agreed until everything is agreed unless the sides decide otherwise." The Syrian groups are invited to resume talks on March 23. - Meanwhile, Russian, US, Turkish high-level military officials met in Antalya to discuss additional coordination measures and "operational de-confliction of military operations" in northern Syria. - On March 13, a Russian-brokered agreement was reached to evacuate rebel fighters from Homs city, which would be carried out within six to eight weeks, between 10,000-15,000 people were expected to leave Homs in weekly batches. The neighborhood was besieged by regime forces since 2013. - On March 14, the EU unveiled its plan in Syria "in contributing to a lasting political solution under the existing UN-agreed framework and in helping to build resilience and stability in the country, as well as supporting post-agreement reconstruction once a credible political transition is underway." - On March 14-15, the third round of talks was held in Astana, even though the AOGs had called for the postponement of the meeting to assess the commitment to the declared ceasefire in Eastern Ghouta. Invitations were sent to the United Nations, the United States and Jordan. On March 14, preliminary consultations were held while a plenary meeting was due on March 15. The results of the intra-Syrian consultations were expected to be discussed. Talks failed to reach any significant agreement, and the three guarantor states issued a joint statement, and scheduled the next high-level meeting in Astana on May 3-4, 2017 and agreed to hold preliminary expert consultations on April 18-19, 2017 in Tehran. - On March 15, two suicide bombs targeted Damascus on the sixth war anniversary; one of them hit the main judicial building, and both killed 74 people and wounding a hundred other. It was later claimed by Fateh al-Sham Front. - On March 18, rebels began to evacuate al-Waer neighborhood in Homs City, to the opposition-held northern town of Jarablus on the borders with Turkey. - On March 20, the EU imposed sanctions against four Syrian high-ranked military officials related to the use of chemical weapons. The ban includes assets freeze and travel ban, and it is considered the first time the EU blacklists military officials. - On March 21, the US-led coalition dropped the SDF fighters on the southern side of the Euphrates to to cut the Aleppo - al-Raqqa Highway. the SDF launched an operation to seize the Tabqa Dam west of al-Raqqa City on March 22 with extensive support from the US. - On March 22, a US-led coalition strike on a center for displaced families in al-Mansoura town held by ISIL in northern Raqqa, killed 33 people. Earlier this month, the coalition declared that its raids in Syria and Iraq unintentionally killed at least 220 civilians. - On March 23-31, the fifth round of talks in Geneva was held despite of the escalation of fighting in Damascus and Hama; the SE shared non-papers with all Syrian sides with some political principles reached during the five rounds, and received their comments and amendments. - On March 24, Russia proposed a draft resolution on the use of chemical weapons in Syria and Iraq, that was reviewed in April 2016 and the UN Security Council did not support it. It was co-authored by China and Russia. Meanwhile, the Human Rights Council adopted a resolution condemning the indiscriminate attacks against civilians, forced displacement of populations, and called to hold all those responsible to account. - On March 27, the second phase of evacuations from al-Waer neighborhood took place, moving 466 citizens and 129 fighters. Meanwhile, the UN SE briefed the LAS Ministerial Council on the recent developments of the Geneva intra-Syrian talks and the Astana process. - On March 28, Russia condemned the US-led coalition airstrikes on the Tabqa Dam, and accused it of trying to "completely destroy critical infrastructure in Syria and complicate post-war reconstruction as much as possible." It further claimed that the coalition destroyed four bridges over the Euphrates river. - On March 29, the UN Secretary-General Antonio Guterres addressed the annual Arab Summit, which was held in the Dead Sea, Jordan. He appealed to the Arab leaders to set aside differences and end the Syrian war. - An agreement was brokered by Iran and Qatar to swap Shi'ite citizens from the two pro-government towns of al-Foua and Kafraya, in the northwestern province of Idlib besieged by rebel fighters, with Sunni fighters and their families from the opposition-held towns of Zabadani and Madaya besieged by pro-government forces. The agreement was due to start on April 4 and would last 60 days; it included a ceasefire in the areas south of Damascus, aid deliveries, and the release of 1,500 prisoners held by the government. - On March 31, U.S. Secretary of State Rex Tillerson disclosed during his visit to Ankara that "longer-term status of President Assad will be decided by the Syrian people" and defeating ISIL is its priority, while U.S. Ambassador to the UN Nikki Haley said the priority was no longer "getting Assad out"; it was later reiterated by the White House Press Secretary Sean Spicer's briefing. April 2017: - On April 3, the European Foreign Affairs Council chaired by the EU High Representative for Foreign Affairs and Security Policy Federica Mogherini took place in Luxembourg, and adopted the EU Strategy on Syria. It held the Syrian regime responsible for the violations against human rights, and reaffirmed that "there can be no lasting peace in Syria under the current regime." - On April 4-5, the EU and its co-sponsors hosted the Brussels Conference on Supporting the future of Syria and the region. The co-chairs declaration took note of UN appeals requesting $8 billion in 2017 to cover the required needs inside Syria and its neighboring countries, and announced pledges raised worth about $11 billion for humanitarian aid programs. - On April 4, an alleged chemical attack on Khan Shaykhun in the province of Idlib was carried out during a Syrian government air raid on the city, which claimed the lives of at least 72 civilians. Russia denied its responsibility and claimed that Syrian airstrikes targeted a rebel chemical weapons warehouse which leaked poisonous gas. While the implementation of the evacuation deal of 30,000 people from the four towns of Kafraya, al-Foua, Madaya and Zabadani was delayed because of reservations of their residents. All 16,000 residents of al-Foua and Kafraya are expected to leave under the deal. - On April 5, the UN Security Council was briefed on the attack by the Acting High Representative for Disarmament Affairs Kim Won-soo on the reported use of chemical weapons in Khan Shaykhun. The US, UK and France had informally circulated a draft resolution which demands that the Syrian government must provide the JIM and the FFM with flight plans and logs of April 4, the names of all helicopter squadron commanders and provide access to air bases where investigators believe chemical attacks may have been launched. Russia criticized the text, and produced its own draft; it did not condemn neither the attack nor the Syrian government, but rather expressed deep concern over the alleged "incident with chemical weapons" and called for a full-scale investigation. Later on April 6, the ten elected members (E10) of the Security Council met at ambassador level to express their frustration for not being included in the negotiating process and discussed an alternative text which would substitute language in the P3 draft on the Syrian government's obligation to provide information on its activities with agreed language from resolution 2118. Neither resolution were tabled for a vote. - On April 6, the US waged retaliatory airstrikes against al-Shayrat airbase outside of Homs, where the chemical attack was launched. 59 Tomahawk cruise missiles had hit the airfield in Syria. The missiles were aimed at Syrian fighter jets and other infrastructure. - On April 7, Bolivia called for a Security Council briefing after the US airstrikes, and Russia announced its suspension of "the Memorandum of Understanding on Prevention of Flight Safety Incidents in the course of operations in Syria signed with the US." - On April 11, the White House released a declassified report drawn up by the National Security Council which confirmed that the Assad regime used sarin gas on its own people, and accused Russia for shielding for its allies. - On April 12, the Security Council held a meeting to vote on the P3 revised draft resolution (4th draft), which incorporated the language from resolution 2118 proposed in the E10 draft; after the SE had provided the council with his monthly briefing on the assessment of the intra-Syrian talks held in Geneva. Ten members voted in favor of the text, China, Ethiopia and Kazakhstan abstained, while Bolivia joined Russia in voting against it. It is Russia's eighth veto against a Syria-related resolution. - On April 14, the evacuation of residents from the Shi'ite towns of al-Foua and Kafraya (besieged by opposition groups) began and their convoys headed towards the government-held Aleppo; meanwhile rebel fighters and their families left the town of Madaya (besieged by government forces) and headed towards Idlib. While the evacuation from Zabadani was delayed and expected to begin later the day. The four towns agreement began with the exchange of thirty prisoners and nine bodies on April 12. The evacuations resumed after a suicide attack that targeted a government loyalties convoy killing some hundred people including women, children and rebel fighters on April 15. - On April 19-20, over 2000 opposition fighters and civilians were evacuated from the besieged towns of Zabadani and Madaya in exchange for the evacuation of nearly 8000 pro-regime fighters and civilians from the besieged towns of al-Foua and Kafraya in Idlib Province. - On April 24, the US sanctioned 271 Syrians employed by the Syrian Scientific Studies and Research Center, related to the development of chemical weapons. The sanction froze the individuals' assets and prohibited US companies to conduct business with them. May 2017: - On May 3-4, military experts from the three guarantors held technical consultations ahead of the two-day fourth round of the Astana process, with the participation of the Director of the UN Mine Action Service Agnes Marcaillou. The SE de Mistura and Nawaf Uasfi Tel, Political Adviser to Jordan's Foreign Minister attended as observers, and the US was represented at a higher-level (for the first time) by US Assistant Secretary of State for Middle East Affairs Stuart Jones. - Despite the Syrian Opposition delegation suspended their participation in opposition to the ongoing bombardments across Syria, the three guarantors signed the Memorandum on the creation of de-escalation areas in Syria, setting up four "de-escalation zones" in Idlib, parts of Homs, Eastern Ghouta, and parts of Deraa and al-Quneitra provinces in southern Syria. The Syrian government welcomed the Russian initiative while the Opposition rejected Iran's involvement as a guarantor. - On May 5, Russia sought UN endorsement to the agreement reached in Astana, and circulated a draft resolution calling on member states to contribute to the implementation of the Memorandum on the creation of de-escalation zones in Syria. The resolution failed to pass for a vote on May 8, as western member states had reservations on the draft. - On May 6, Riad Seif was elected as the sixth president of the SOC, beating Khaled Khoja with 58 votes from the 102 member coalition. He would replace the current head Anas al-Abdeh, who was elected in March 2016. Also, Abdulrahman Mustafa and Salwa Ktaw were elected as vice presidents. - On May 8, the evacuation process of the government-besieged Damascus suburb of Barzeh began, around 1,022 people, including 568 rebels, headed towards Idlib and northern town of Jarablus near the Turkish borders; the second convoy of 700 rebels moved on May 12. While Walid al-Muallem, the Syrian Foreign Minister, rejected any international forces under UN supervision to monitor the de-escalation zones deal. Meanwhile, the White House approved providing arms to Kurdish fighters as support to their operation to retake al-Raqqa City, despite Turkey's strong opposition. - On May 16, the FFM's report confirmed the use of sulfur mustard in the attack on Aleppo on Sept. 16, 2016, and was made public. The report was raised to the UN Security Council on May 5. The FFM, also, confirmed in its report, regarding its investigation of the April 4 attack on Khan Shaykhun, the use of sarin-gas or a sarin-like substance. The FFM is only mandated for indicating whether chemical weapons were used, while the JIM is mandated to determine responsibility for the attacks. - While the US Department of the Treasury's Office of Foreign Assets Control sanctioned ten additional entities for providing support to the Syrian regime. - On May 16-19, the UN SE held the sixth round of the Intra-Syrian talks in Geneva, which ended without covering the four baskets of the agenda, only focusing on the constitutional issues. The SE shared a proposal with the parties to establish "a Technical Consultative Mechanism on Constitutional and Legal Issues;" the proposal would identify "options for the process of constitutional drafting, and for the conduct of a national conference/national dialogue, and identify for review specific options for ensuring a sound constitutional and legal basis for any framework agreed in Geneva embodying a package and including providing for credible, all-inclusive, non-sectarian governance," and that is through UN-facilitated expert-level meetings with both Syrian sides. - On May 18, while the EU Parliament adopted a resolution pertaining the EU Strategy on Syria, which the European Council for Foreign Affairs had passed on 3 April 2017; the US-led coalition's airstrikes destroyed a pro-Syrian regime convoy of the Iraqi Shi'ite militia of Kata'ib Imam Ali, that advanced along the Damascus-Baghdad Highway towards al-Tanf base (where the US, UK and Jordan train fighters of Jaysh Mughawir al-Thawra against IS in Eastern Syria). - On May 20-21, the evacuation of nearly 3000 people, some 700 fighters and their families, was completed from al-Waer district, the last opposition-held district in the province of Homs. According to Talal Barazi, Governor of Homs, more than 14,000 people had left al-Waer in several phases since the "reconciliation deal" began to be implemented in March. Among them were some 3,700 rebels, allowed to leave with their light weapons. Russia later deployed 50 to 150 Military Police into the district. - On May 22, the SE briefed the Security Council on the latest developments, and on the last round of the Intra-Syrian talks. He commended the Astana process for the reduction of violence in the agreed de-escalation areas, and urged its guarantors to finalize their agreement addressing the subjects of detainees, abductees and humanitarian demining. The SE asserted that the rounds' focus on legal and constitutional issues does not rule out "the principle of parallelism" in addressing the agenda, and that a new consultative process at a technical level was introduced to discuss relevant constitutional and legal matters. - On May 25, NATO leaders agreed in Brussels to become full members of the Global Coalition against ISIS; the organization would not engage in combat operations, but would provide air refueling to the Coalition's aircrafts, capacity building through the deployment of special forces to train local partners, and would establish an intelligence information cell to ensure information-sharing on foreign fighters. - On May 29, the final convoy of fighters and their families moved from the opposition-held besieged district of Barzeh in Damascus to Idlib Province; estimately more than 4000 fighters and civilians were evacuated from Barzeh and Eastern Ghouta under the Russian-brokered deal. - On May 30, the US delivered its first shipment of arms to the Kurdish-led SDF, which had advanced against IS in the eastern outskirts of al-Raqqa, seizing eight villages and taking control over the Ba'ath Dam. - On May 31, Russia's Grigorovich-Class Frigate Admiral Essen and Kilo-Class Submarine Krasnodar launched four cruise missiles targeting IS near Palmyra; it targetted arms depots of fighters relocating from al-Raqqa to Eastern Homs. Russia had notified the US, Turkey, and Israel of the strikes-On June 2, EU High Representative Federica Mogherini met with newly-elected President of the Syrian Opposition Council (SOC), Riad Seif, and Syrian Interim Government (SIG) Prime Minister, Jawad Abou Hatab, to discuss the political process and EU support for Syrian resilience. Both parties reiterated their commitment to the UN-led Geneva process. June 2017: -On June 4, pro-government forces gained control of Maskanah city, the last remaining ISIS stronghold in Aleppo governorate. The advances brought pro-government forces within 10 km of Raqqa's provincial border. -US-backed SDF captured a hydroelectric facility (Baath Dam) from ISIS militants, securing the final of three major dams along the Euphrates river. -On June 5, pro-government forces captured the areas of al-Alb, Bir Dahlon and Sharot Dahlon in Eastern Homs governorate, reportedly capturing over 6,000 sq km of ISIS-held territory. -On June 6, US-backed SDF announced the launch of the fifth phase of the campaign to capture Raqqa, ISIS' self-declared capital, with forces advancing from the north, east and west and the US-led Coalition supporting the offensive with air and artillery strikes. - The US-led Coalition conducted airstrikes against pro-government forces advancing near al- Tanf, a de-confliction zone in southeastern Syria. This marks the second strike in the area in less than a month, amid escalating tensions between the US and Iran-backed forces over control of Syria's southeastern frontier. - On June 8, Russian Foreign Minister Sergei Lavrov met with the UNSE de Mistura in Moscow to discuss "the consolidation of the cessation of hostilities, the fight against terrorism, the continuation of the political settlement on the basis of UN Security Council Resolution 2254," according to the Russian Presidential Envoy for the Middle East and North Africa and Deputy Foreign Minister Mikhail Bogdanov. The consultations were held prior to the fifth round of the Astana Process, which was set to take place in June, but was later postponed till the month of July. -On June 9, during a press briefing in Geneva at the conclusion of a meeting of the humanitarian task force set up by the International Syria Support Group (ISSG), the SE declared that the time was not right to resume the UN-led intra-Syrian talks. -On June 13, the WFP delivered food to more than 80,000 displaced people in seven hard-to-reach areas in Raqqa and Deir Ezzor governorates in northern Syria, where regular deliveries of humanitarian assistance had been suspended for over three years. -On June 14, Chairman of the CoI, Paulo Pinheiro, expressed concern for the "staggering loss of civilian life" caused by US-led Coalition airstrikes as part of the Raqqa campaign, stating that airstrikes had led to the displacement of 160,000 civilians. He also stressed that the Astana agreement had led to a reduction in violence in just one of the four zones outlined in the memorandum. -On June 15, during a briefing to Council members, UN High Representative for Disarmament Affairs, Izumi Nakamitsu, noted that "some progress" had been made in the implementation of resolution 2118 (2013) on the elimination of chemical weapons in Syria. However, she highlighted the continued lack of safe access to two above-ground stationary facilities scheduled for destruction under OPCW supervision. -Pro-government forces targeted the opposition-held neighborhoods of Jobar and Eastern Ghouta in the first major attack since the announcement of four "de-escalation zones" at the Astana talks in May. Syrian Armed Forces seized the Arak gas field in the region of Badiya, which had been captured by IS since 2015; the SAF declared that it recaptured 20 percent of the Badiya region. -On June 16, the Office of the Special Envoy for Syria declared that it had facilitated a meeting of technical experts from three opposition groups: the High Negotiating Committee, the Cairo Platform and the Moscow Platform as part of a technical consultation process announced at the end of the sixth round of intra-Syrian talks. The meetings focused on the timeline and process for drafting a new constitution. -On June 17, the SE announced that the seventh round of intra-Syrian talks would begin in Geneva on July 10, with further rounds tentatively planned for August and September. -The Syrian government declared a 48-hour ceasefire in the southern city of Daraa. The agreement, reportedly brokered by Russia, the US and Jordan, comes after an escalation in violence between pro-government forces and AOGs in Daraa. -On June 18, US-led coalition forces shot down a piloted Syrian government aircraft in southern Raqqa province. According to the Coalition statement, the aircraft was downed after it displayed hostile intent and advanced on coalition forces. The Russian Ministry of Defense (MOD) released a statement following the incident claiming that the US shot down the Syrian jet while it was conducting an offensive against ISIS, and accusing the US of failing to use the "de-confliction channel". The MOD statement announced that Russia was cutting off participation in the de-confliction channel pending an investigation and that all kinds of airborne vehicles operating in combat mission zones west of the Euphrates River would be tracked by Russia as air targets. -Iran launched several ballistic missiles targeting ISIS positions in eastern Syria, reportedly carried out in retaliation for a terrorist attack in Tehran two weeks prior. This was Iran's first missile attack abroad in 15 years and its first in the Syrian conflict, representing an escalation of its role. -On June 19, the Syria Institute and PAX published the Sixth Quarterly Siege Watch Report, covering events from February to April 2017. -On June 20, an American fighter jet downed an "Iranian-made" armed drone in southern Syria after it "displayed hostile intent" when it approached coalition forces stationed at a base located in a de-escalation zone. It marked the second time in a month that the US had shot down an armed drone near Tanf camp. -On June 21, after opening a new front to the south of Raqqa, US-backed Syrian Democratic Forces (SDF) came within several kilometers of fully encircling the city after having already surrounded Raqqa to the north, east and west. - Turkey deployed reinforcements to the towns of Azaz and Marea in northern Syria, held by turkey-backed Syrian opposition forces, in preparation of anticipated battles with its rival Kurdish forces. - French President Emmanuel Macron, contradicting previous French policy, that France sees "no legitimate successor" to Assad and no longer considers his departure as a precondition to resolve the ongoing conflict. On July 5, the president met with Riad Hijab, Head of the HNC, to reiterate France's support to the Syrian Opposition. -On June 22, Turkish and Russian troops were deployed to Syria's northern Idlib province as part of a de-escalation agreement brokered by Russia, Turkey and Iran in May. - WFP announced that the first aid convoy had reached 15000 civilians in the city of Qamishli by land route, since it had been inaccessible in 2015, and humanitarian aid was sent through air drops instead. -On June 24, the Syrian government released 672 detainees in a move it said was aimed at bolstering the reconciliation process. -On June 27, the SE briefed the Council on the situation in Syria, expressing his readiness to facilitate direct talks between the Syrian government and opposition either at a formal or technical level. -On June 28, OPCW-JIM published its sixth report updating the SC on the status of its review of two cases identified by the FFM concerning incidents reported in Umm Hawsh in Aleppo Governorate in September 2016 and Khan Shaykhun in Idlib Governorate on April 4, 2017. -On June 29, OCHA head Stephen O'brien briefed the Council on the humanitarian situation in Syria, noting that despite a reduction in violence in some areas of the country, humanitarian convoys remained unable to reach civilians in besieged and hard-to-reach places due to bureaucratic restrictions. O'brien also detailed the Secretary-General's monthly report on the situation in Syria, released June 23, that highlighted the Astana memorandum signed by Iran, Russia and Turkey in May and the escalation of anti-ISIS operations in Syria. -The OPCW released a report on progress in the elimination of the Syrian chemical weapons program, verifying the destruction of 25 of the 27 chemical weapons production facilities previously declared by the Syrian government. However, the OPCW continues to express consideration that the initial declaration was incomplete. July 2017: -On July 1, Israeli Defense Forces (IDF) launched a strike against pro-government positions near al-Baath in Quneitra governorate in response to two stray artillery shells fired from Syria that landed in the Golan Heights. This is the fifth Israeli strike on pro-government positions near the area of al-Baath within a week. -On July 3, the UNSC appointed Catherine Marchi-Uhel to head the International, Impartial and Independent Mechanism, the UN legal team tasked with collecting and preserving evidence of the most serious crimes committed in Syria since 2011 to be used by national courts or an international tribunal. The Mechanism was established by the General Assembly on December 21, 2016 despite fierce resistance from Russia, which had previously used its veto status to block criminal investigations into the conflict. -The Syrian Army announced the suspension of all combat operations in the southern governorates of Daraa, Suweida and Quneitra for four days ahead of upcoming peace talks in Astana, Kazakhstan. It is the second unilateral ceasefire by the Syrian Army; it had announced a ceasefire in Daraa along the border with Israel on June 17. -On July 4-5, the fifth round of Astana talks co-sponsored by Russia, Iran and Turkey, convened in the Kazakh capital. The talks failed to finalize details on the boundaries and monitoring mechanisms of the four safe zones agreed to during the fourth round of Astana talks in May. In a joint statement, the guarantors welcomed the establishment of an expert-level joint working group tasked with finalizing the operational and technical parameters of the de-escalation zones, and scheduled the next Joint Working Group meeting in Tehran, on August 1-2. -On July 6, Edmond Mulet, head of the three-member leadership panel of the OPCW-JIM briefed Security Council members on the June 28 report of its investigations into the culpability for chemical attacks in Syria and urged the international community to allow the Mechanism to conduct its work in an independent and impartial manner. -On July 7, the United States, Russia and Jordan reached a ceasefire and "de-escalation" agreement for southwestern Syria to take effect July 9. The specificities of an enforcement mechanism and the precise boundaries of the ceasefire zone. Russian Foreign Minister Sergey Lavrov stated that the ceasefire would cover the areas of Daraa, al-Suweida and Quneitra governorates without providing exact boundaries. The ceasefire agreement in southwestern Syria is separate from the Astana memorandum, and was reached during the meeting between US President Trump and Russian President Vladimir Putin on the sidelines of the G20 Summit in Hamburg. The SG welcomed the ceasefire announcement, calling it a significant step towards reducing violence and humanitarian access in Syria; while Israel voiced its objections on the deal. -On July 10, the seventh round of UN-led intra-Syrian talks convened in Geneva. The UN-sponsored talks were scheduled to focus on four points: drafting a new constitution, combating terrorism, governance and elections. Russian Foreign Minister Sergey Lavrov expressed hope that the talks would help solidify de-escalation zones created through the Astana process. The SE stated that de-escalation zones can be beneficial but must only be interim measure to avoid the partition of Syria. The Geneva talks ended July 14 with no apparent progress. Representatives of the HNC accused the Syrian government of refusing to enter into serious negotiations. The SE noted that there had been "no breakthrough, no breakdown" during the talks and expressed hope that recent international momentum would push the parties face-to-face for substantive discussions. -On July 11, SOHR reported that it had "confirmed information" that ISIS leader Abu Bakr al- Baghdadi had been killed in the eastern province of Deir Ezzor. US-led Coalition Spokesperson Colonel Ryan Dillon could not confirm the report, nor could various media sources or Iraqi or Kurdish officials. -On July 12, following the opening of a land route connecting Aleppo to Hasakah governorate, WFP announced that it had successfully delivered food aid to two locations in the Raqqa governorate for the first time in three years. -On July 13, Brett McGurk, US Special Envoy for the Global Coalition fighting ISIS, revealed that Russia had expressed willingness to deploy military police to monitor compliance and prevent violations of the recently implemented ceasefire in southwestern Syria. -On July 14, Russia's parliament approved an agreement between Russian and Syrian officials that provides for the long-term deployment of Russian aircraft and personnel to Syria. Defense Minister Nikolay Pankov said the deal will help legalize Russia's military activities in Syria "within an international framework". -France proposed the creation of a contact group comprised of permanent members of the UN Security Council and regional actors to support UN efforts to formulate a political road map after the conflict ends. -On July 17, the EU added 16 scientists and military officials to the list of those targeted by sanctions against the Syrian regime due to their suspected involvement in a chemical attack against civilians in April. - The Syrian army, backed by Iranian-militias managed to seize oil fields of Wahab, al Fahd, Dbaysan, al-Qseer, Abu al Qatat and Abu Qatash and several other villages in the southwest of Raqqa province, while Russian strikes targeted the town of Sukhna, the gateway to Deir ez-zour. - The Turkish state-run Andalou Agency exposed ten US military locations in northern Syria, giving exact numbers of US and French special forces stationed there. The US-led Coalition against ISIS condemned Turkey for "leaking sensitive military information shared between two allies." -On July 19, it was made public that President Donald Trump ended a covert CIA program that provided arms and training to Syrian rebel groups. The program was a central feature of the Obama Administration's policy in Syria. -On July 20, 150 fighters from the Turkey-backed Euphrates Shield operation had crossed from Turkey through Bab alhawa to support Ahrar al-Sham in its fight against Hayat Tahrir al-Sham (HTS), dominated by the Fateh al-Sham faction formerly known as Jabhat al-Nusra, in Idlib. -On July 21, the SG submitted to the Security Council the forty first report on the humanitarian situation in Syria for the period from 1 to 30 June 2017, highlighting the approximately 20,000 people displaced across northeast Syria in June due to the Raqqa offensive. According to the report, the Syrian government removed medical supplies sufficient for more than 84,000 treatments. -Hezbollah and the Syrian Army launched a joint offensive against militant groups in the town of Arsal and the western Qalamoun mountain range along the Lebanon-Syrian border, an area purported to hold over 3,000 militants, including al-Qaeda-linked insurgents and members of ISIS. -On July 24, 14 heads of mission in Geneva signed a letter addressed to Security Council President, Chinese Ambassador Liu Jieyi, raising "serious concerns" about the implementation of seven Security Council resolutions on humanitarian access and urging Liu to raise the issue at the upcoming Council meeting. The signatories include the United States, Saudi Arabia, Britain, France Turkey, Qatar, Japan, Australia, the European Union, Germany, Spain, the Netherlands, Canada and Italy. -General Sergei Rudskoi, chief of the Russian General Staff, announced the deployment of Russian military police to monitor compliance after a ceasefire, mediated by the Egyptian government, was declared in the Eastern Ghouta area of Damascus on July 22. Despite the reported ceasefire, part of the four proposed "de-escalation zones" outlined in the Astana memorandum, Syrian government forces continued to attack several towns in Eastern Ghouta. -On July 26, fighting on the Syrian-Lebanese border near the town of Arsal halted after a ceasefire agreement was reached between Hezbollah and HTS. The cessation of hostilities ended a six-day campaign to drive al-Qaeda-linked militants from the border region, which is also home to tens of thousands of refugees. The agreement included the evacuation of some 1000 HTS fighters, along with more than 6000 Syrians (in nearby refugee camps) from the Lebanese border town of Arsal to rebel-controlled Idlib province, as well as exchange of prisoners between Hezboallah, HTS and the Lebanese Armed Forces, which later took place on August 1. -On July 27, Ursula Mueller, Assistant Secretary-General for Humanitarian Affairs and Deputy Emergency Relief Coordinator in the Office for the Coordination of Humanitarian Affairs, briefed Council members on the humanitarian situation in Syria, noting that despite reduced violence, there had not been a noticeable increase in areas reached for aid delivery. -The Syrian Ministry of Foreign Affairs and Expatriates addressed two letters to the UNSG and the Security Council calling for immediate action in the militant-besieged towns of Kefraya and al-Foua. -The US-led coalition fighting ISIS told its local Syrian allies that they must exclusively fight ISIS, a directive that prompted Shohada al-Quartyan to depart a joint coalition base in Southern Syria to carry out independent operations against Syrian regime forces. -On July 28, the OPCW released its monthly report, noting that the security situation now allows safe access to confirm the condition of the final two above-ground facilities with planning underway to verify their destruction. -On July 30, for the first time in five years, UN aid was delivered to almost 7,2000 people in besieged al-Nashabiye located in Eastern Ghouta, a rebel-held area on the outskirts of Damascus. August 2017: -On August 2, the evacuation of at least 7,000 people, including al-Qaeda-linked fighters and refugees, from Lebanese border enclave of Arsal for rebel-controlled Idlib province commenced. The transfer agreement, the largest formal repatriation of refugees to Syria since 2011, was carried out without the involvement of aid groups generating concern about the welfare of the refugees. -On August 3, the Russian Ministry of Defense announced a ceasefire in northern Homs and southern Hama, in what is being billed as the third of four planned ceasefires agreed to under the Astana memorandum. Russia deployed police military to several checkpoints in northern Homs, later on August 4. Opposition groups called for a guarantor role for Turkey. According to SOHR, the ceasefire, which covered territory populated by more than 147,000 people, held for the first 10 hours before experiencing repeated violations by pro-government and rebel forces. -The Independent International Commission of Inquiry on Syria of the Human Rights Council (CoI) called on the international community to recognize the crime of genocide being committed against the Yazidis in Iraq. -On August 8, experts from the guarantor states met in Tehran to discuss ways to strengthen the de-escalation zones and determine the agenda for the upcoming sixth round of Astana talks. -On August 8-11, twenty-four FSA-affiliated groups formed new group "Liwa Tahrir Deir ez- Zour" to liberate the province of Deir ez-Zour from IS; the new faction welcomed any cooperation with local and international parties, ruling out the SDF. -On August 9, OCHA expressed concern about the safety and protection of an estimated 10,000- 25,000 people trapped inside Raqqa without access to safe drinking water for 48 days. Due to the fighting on the ground, the UN has currently no access to Raqqa city. - Russian Permanent Representative to the UN Vasily Nebenzya briefed the Security Council on the progress of establishing de-escalated zones in Syria, behind closed doors, and called on the UN to facilitate the delivery of humanitarian assistance in those areas. -On August 10, SDF US-backed forces encircled ISIS militants in central Raqqa, effectively cutting off ISIS' last remaining route to the Euphrates. -On August 12, the Syrian government captured al-Sukhna, the final ISIS stronghold in Homs governorate, as part of its multi-pronged campaign to take eastern Syria. The recent gains position the pro-government coalition 50 km (30 miles) away from Deir ez-Zour province, the last major ISIS foothold in Syria. -On August 14, approximately 300 FSA-affiliated Saraya Ahl al-Sham fighters and 3,000 refugees began evacuating the Lebanese border town of Arsal as part of a repatriation agreement brokered in early August between Lebanese and Syrian officials. Lebanon's Maj. Gen. Abbas Ibrahim, who is overseeing the transfer, said that civilians will head to the government held area of Assal al-Ward. The rebel fighters and their families are destined for the rebel-held town of al- Ruhaiba in the Eastern Qalamoun region where, according to Hezbollah's Al-Manar TV, they have been granted amnesty by the Syrian government. Their departure leaves the Islamic State as the last militant force straddling the border near Arsal. -Nearly 50,000 people remain stranded on the Jordanian border, in an area known as the berm, and are facing an increasing scarcity of food, healthcare and other basic services. The UN stressed that it will continue to support Jordanian authorities in the protection of affected Syrians. -On August 17, the UNSC adopted a presidential statement, read by Council President for August and Ambassador of Nigeria, Joy Ogwu, in support of a political transition process in Syria in accordance with the principles of the Geneva Communique. The adoption of the text signals, for the first time in two years, the consensus of the Council and its five permanent members on the need to establish a transitional government. -On August 17-20, Damascus hosted the 59th International Trade Fair, for the first time since 2011, and involved hundreds of delegations and private companies from at least forty-three states including Russia, Iran, China, and Egypt. -On August 20, President Assad announced in a speech before Syrian diplomats that Syria would not work with any Western nations until they ended their support for opposition and insurgent groups. -On August 21, UN experts launched an investigation into purported weapons deals between Syria and North Korea after two shipments to a Syrian government agency responsible for its chemical weapons program, the Syrian Scientific Studies and Research Center (SSRC), were intercepted. -Saudi-based High Negotiations Committee (HNC) met with delegations from the moderate Cairo and Moscow camps in Riyadh in an effort to establish a unified front for upcoming peace talks. Despite pressure from international allies calling for a more pragmatic approach, the HNC refused to accept a transition scenario in which Assad retained power. -On August 22, the next round of Astana talks was pushed back from late August to mid- September to allow the guarantor states to hold a technical meeting to set the meeting agenda. -On 23 August, a joint monitoring center was established in Amman for the southwestern de-escalation zone, which is located in the provinces of Daraa and Quneitra. The center is tasked with ensuring ceasefire compliance, ensuring humanitarian access and other forms of civilian assistance. -On August 24, the UN called for a humanitarian pause in US-led Coalition airstrikes on Raqqa to permit civilians to leave the city. This comes after the release of an Amnesty International report calling for greater protection efforts for the estimated 20,000 remaining civilians in Raqqa. -On August 25, the Russian army announced that it had dismantled the two remaining Syrian chemical weapons facilities targeted for destruction by OPCW. The OPCW has not confirmed the Russian report. -On August 28, hundreds of ISIS fighters and their families were evacuated from the Lebanese- Syrian border to militant-held eastern Syria following simultaneous Lebanese army and Hezbollah campaigns against ISIS positions. The transfer marks the first time ISIS agreed to a forced evacuation from territory it held in Syria. - The Secretary-General presented his monthly report on the situation in Syria, highlighting the recent efforts to reduce violence through de-escalation agreements and expressing hope that the Astana guarantors will reach an agreement on the finalization of operational and technical modalities for all de-escalation areas. -On August 30, Special Envoy Staffan de Mistura briefed the Security Council on the political path forward which includes a new round of Astana and Geneva talks. The SE highlighted the important role Syrian opposition allies stand to play in fostering cohesion and unity among the AOGs. - In his final address to the Council after two years as Under-Secretary-General for Humanitarian Affairs and Emergency Relief Coordinator, Stephen O'Brien appealed to members of the Council to take action to end the civil war in the name of common humanity, calling for a referral to the International Criminal Court. -On August 31, UN High Commissioner for Human Rights Zeid Ra'ad Al Hussein, stressed that the protection and assistance of citizens must take priority before defeating the Islamic State, citing reports of heavy civilian casualties in Raqqa as evidence of the threat the remaining 20,000 civilians face. -US airstrikes stalled a convoy of 300 ISIS fighters and their families in a government-controlled part of the Syrian desert in an effort to prevent their advancement into ISIS-held territory near the Iraqi border. The convoy was traveling from the Syrian-Lebanese border to Syria's eastern province as part of an evacuation deal brokered between ISIS, Hezbollah and the Syrian Army. -Pro-government forces captured strategic al-Bishri mountain overlooking ISIS-controlled Deir Ezzor province, bringing government coalition forces within close range of ISIS positions. September 2017: On September 1, French Foreign Minister Jean-Yves Le Drian rejected a role for Assad in a political transition in Syria. -The Syrian Islamic Council called for Syria's AOGs to end their fragmentation and unite as one armed body under the Ministry of Defense in the Syrian Interim Government. Ahrar al-Sham, Failaq al-Sham, Liwa Ansar al-Sunnah and Jabha al-Shamiya supported the initiative. -SDF spokesperson, Jihan Ahmad, announced that the SDF had gained control over an estimated 65 percent of Raqqa city after capturing the Old City, the Great Mosque and al-Dariya neighborhood. SOHR reported that the SDF were still fighting to gain control over pockets of the Old City but added that the US-backed opposition forces held more than 90 percent of the surrounding area. -On September 2, Russian Aerospace Forces reported they had destroyed a convoy of 12 ISIS trucks carrying ammunition and weapons in Deir Ezzor province. -It was made public that the British Ministry of Defense had quietly halted its FSA training program and called back its training forces from Syria in late June 2017. -On September 3, pro-government coalition forces gained control of the remaining ISIS stronghold in Hama Governorate after capturing the town of Uqayribat and its surrounding areas. -On September 4, Syrian Interim Government Prime Minister Jawad Abu Hatab was appointed interim Defense Minister as part of a unification initiative launched by the Syrian Islamic Council in early September. Free Syrian Army factions formed a committee to select a Chief of Staff in consultation with the Prime Minister. -On September 5, the Secretary-General submitted the OPCW's forty seventh monthly report on the progress to eliminate chemical weapons in Syria to the Security Council. The report highlighted the preparations underway to confirm the status of the two remaining stationary above-ground facilities now that the security situation allows safe access and the upcoming high- level consultations with Syrian Deputy Foreign Minister, Dr. Faisal Mekdad, to clarify outstanding issues regarding the Syrian government's initial declaration. -Pro-government coalition forces reached the western perimeter of Deir Ezzor city, breaking a three-year ISIS siege of the government-held areas that had impacted 93,500 people. In support of the offensive, a Russian warship located in the Mediterranean Sea launched cruise missiles at ISIS positions near Deir Ezzor. -On September 6, SE Mistura said he expects a national ceasefire to follow shortly after ISIS has been pushed from its strongholds in Raqqa and Deir Ezzor. Although he stressed that the government "cannot announce victory", he called on opposition forces to accept defeat and focus on winning the peace through negotiations in October. -The UN Commission of Inquiry on Syria released a report on the major human rights and humanitarian law violations committed between March and July 2017. The Commission accused the Syrian government of using sarin gas in the April 4 Khan Sheikhoun attack and found US forces culpable of not taking "all feasible precautions" to protect civilians in the March 16 attack on al-Jinah Mosque. -According to Russian Foreign Minister, Sergey Lavrov, experts from Russia, Iran and Turkey made progress towards an agreement "on the parameters, configuration and methods of ensuring security in the de-escalation zone in the Idlib province" in Syria. -On September 7, Israel conducted airstrikes on the Scientific Studies and Research Center, a facility believed to house a chemical weapons manufacturing center, and a military base storing surface-to-surface missiles near government-stronghold Masyaf in Hama province. The Syrian Foreign Ministry called on the Security Council to denounce the airstrikes. -US-led coalition forces fighting ISIS announced that airstrikes had killed two ISIS leaders near Mayadin in the Deir Ezzor province on September 4, 2017. -The Head of the High Negotiations Committee, Riyad Hijab, rejected the SE Mistura's call for the opposition to accept defeat, declaring the UN mediation process a failure and calling on Syrians to demonstrate in support of the continuation of the revolution. On September 8, a convoy of 42 trucks carrying humanitarian aid for 80,000 people reached Deir Ezzor for the first time by land in three years. -US-led coalition surveillance aircraft departed its position monitoring an 11-bus convoy of ISIS fighters and their families after attempting to prevent its advance into ISIS-held territory in Deir Ezzor since August 29. The surveillance aircraft departed the airspace at the request of Russian military officials who were conducting an operation with pro-government forces close to the convoy's position. -The Syrian National Coalition (NCSRF) condemned calls from "regional and external parties" for Western-backed opposition groups Ahmed Al-Abdu and Ussoud Al-Sharqiya to cease fighting government forces in southeastern Syria and withdraw to Jordan. Both groups refused the request. -On September 9, pro-government forces broke a years-long siege of Deir Ezzor airbase and captured the Damascus-Deir Ezzor highway from ISIS. -SDF launched Operation Jazeera Storm to liberate Deir Ezzor province from ISIS. -On September 10, SDF reached the industrial zone to the east of Deir Ezzor city putting the US-backed coalition within 15 km (10 miles) of pro-government forces positioned to the west of the Euphrates river. -On September 11, the Jordanian Foreign Minister, Ayman Safadi, and Russian Foreign Minister, Sergey Lavrov, declared the ceasefire brokered by Jordan, Russia and the United States in the southern Syrian provinces of Daraa, Quneitra and Suweida on July 9 a success and reiterated their commitment to the establishment a de-escalation zone in the area as a step towards achieving a comprehensive cessation of hostilities and a political solution to the crisis. On September 12, pro-government coalition forces continued their push into ISIS-held territory in Deir Ezzor city. Russia and Syria warplanes conduct heavy bombardment in support, killing an estimated 69 people over the course of 72 hours. -Hezbollah leader, Sayyed Hassan Nasrallah, declared the war in Syria over, referring to the remaining fighting as "scattered battles". -ISIS defectors have massed in Syria's Idlib province with many planning to cross into Turkey before continuing to other parts of the Middle East, North Africa and Europe. -Iran and Syria sign a memorandum of understanding on cooperation in Syria's electricity sector. The arrangement, part of a series of bilateral deals formalizing Iran's role in Syria's reconstruction process, provides for the establishment of a new power generation station in Latakia and the rehabilitation of gas units and power generating plants in Damascus, Aleppo, Deir Ezzo and Homs. -On September 13, the remaining buses of the convoy of ISIS fighters and their families stranded for over two weeks in the Syrian desert reportedly reached Mayadin, in militant-held Deir Ezzor province, following the withdrawal of US surveillance aircraft on September 8 in respect of de-confliction arrangements with Russia. -The Russian Defense Ministry claimed that pro-government coalition forces controlled 85 percent of Syrian territory. SOHR disputed the claim, saying government forces held 48 percent of Syria. -Experts from Russia, Iran and Turkey met ahead of the sixth round of talks in Astana, Kazakhstan to "lay the groundwork" for negotiations on the establishment of de-escalation zone in Idlib province. -On September 14, Col. Ryan Dillon, spokesperson for the US-led coalition fighting ISIS, said SDF forces will not enter Deir Ezzor city, and will instead focus operations on areas south of the city along the Euphrates river. He also said US-backed SDF was in control of 63 percent of Raqqa city. -On September 15, Ahmad Abu Khawla, commander of the SDF-affiliated Deir Ezzor Military Council, declared that it will not allow government forces to cross to the eastern banks of the Euphrates river. -Representatives from Russia, Iran and Turkey reached an agreement on the delineation and monitoring mechanism for the implementation of a de-escalation zone in Idlib province and agreed to position observers in "safe zones". Russia circulated a draft resolution among the permanent members of the Council to welcome the outcome of the Astana talks. -On September 16, the SDF and US Coalition officials accused pro-government forces of attacking one of their positions in the industrial zone east of Deir Ezzor city, injuring 6 SDF fighters. According to US Coalition sources, Russia conducted the airstrike after the United States had denied its request to target the area. Russian Defense Ministry spokesperson Maj. Gen. Igor Konashenkov rejected the allegations, saying warplanes carried out "pinpoint strikes only on Islamic State targets that have been observed and confirmed through several channels." -High-level consultations commenced between the Syrian government and the OPCW aimed at clarifying all outstanding issues regarding Syria's initial declaration of its chemical weapons facilities. -On September 17, a convoy of 80 Turkish military vehicles deployed to Turkey's southern border, close to the Bab Al-Hawa and Rihaniyah crossings with Syria's Idlib Governorate, ahead of the implementation of a de-escalation zone agreement brokered at the recent Astana talks. -On September 18, pro-government coalition forces crossed to the eastern bank of the Euphrates river to within five kilometers of SDF positions. In the first sign of direct contact between the SDF and the pro-government forces, US-led coalition spokesperson Col. Ryan Dillon said "open lines" of communication were being maintained to prevent clashes between the two forces as they converge on ISIS positions. -After capturing the Deir Ezzor Military Airporst from ISIS fighters, pro-government forces began operating combat and supply missions from the airport. -The World Food Programme (WFP) reached formerly besieged parts of Deir Ezzor city by land for the first time since May 2014. WFP has discontinued its high-altitude airdrop operations in favor of road deliveries which will allow for more affordable, sustainable humanitarian access. -In a meeting on the sidelines of the UN General Assembly, Members of the "Friends of Syria" Group agreed they will not support reconstruction in Syria until there is a political transition "away from Assad." -During its 36th session, the Human Rights Council held an interactive dialogue with the Independent International Commission of Inquiry on Syria to discuss the continued targeting of civilians and the use of chemical weapons in the conflict, appealing to all parties to redouble their efforts to protect civilians and preserve civilian infrastructure. -On September 19, AOGs led by Hayat Tahrir Al-Sham (HTS), the Turkistan Islamic Party and Free Syrian Army affiliates launched an offensive against pro-government forces in northern Hama province in an effort to dismantle the de-escalation zone agreement on Idlib province brokered at the recent Astana talks. The offensive sparked intense Russian and Syrian bombardment of opposition-held territory in Hama and Idlib Governorates. Syrian government forces claimed the airstrikes targeted "terrorist supply lines" but SOHR alleged the strikes hit hospitals and towns, killing civilians. -The Syrian government asserted it will not accept Turkish forces on Syrian soil, effectively contradicting