Civil War in Syria
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Middle East and North Africa
Significant
Unchanging
Civil War
Recent Developments
In December 2018, President Donald J. Trump announced a decision to withdraw the roughly two thousand U.S. troops remaining in Syria. On January 16, 2019, an attack in Manbij claimed by the self-proclaimed Islamic State killed at least nineteen people, including four Americans. Prior to that attack, only two Americans had been killed in action in Syria since the U.S.-led campaign began. The U.S.-led international coalition continues to carry out military strikes against the Islamic State and provides support to the Syrian Democratic Forces (SDF) and internal security forces.
The pullout of U.S. troops has increased uncertainty around the role of other external parties to the conflict—including Iran, Israel, Russia, and Turkey—as well as the future of internal actors.
Background
What began as protests against President Assad’s regime in 2011 quickly escalated into a full-scale war between the Syrian government—backed by Russia and Iran—and anti-government rebel groups—backed by the United States, Saudi Arabia, Turkey, and others in the region. Three campaigns drive the conflict: coalition efforts to defeat the Islamic State, violence between the Syrian government and opposition forces, and military operations against Syrian Kurds by Turkish forces.
The Islamic State began seizing control of territory in Syria in 2013. After a series of terrorist attacks coordinated by the Islamic State across Europe in 2015, the United States, the United Kingdom, and France—with the support of Turkey, Saudi Arabia, and other Arab partners—expanded their air campaign in Iraq to include Syria. Together, these nations have conducted over eleven thousand air strikes against Islamic State targets in Syria, while the U.S.-led coalition has continued its support for ground operations by the SDF. Turkish troops have been involved in ground operations against the Islamic State since 2016, and have launched attacks against armed Kurdish groups in Syria. Meanwhile, at the request of the Syrian government in September 2015, Russia began launching air strikes against what it claimed were Islamic State targets, while Syrian government forces achieved several notable victories over the Islamic State, including the reclamation of Palmyra. According to the U.S.-led coalition against the Islamic State, 98 percent of the territory formerly held by the group in Iraq and Syria, including Raqqa and Deir al-Zour, has been reclaimed by Iraqi security forces and the SDF.
With Russian and Iranian support, the Syrian government has steadily regained control of territory from opposition forces, including the opposition’s stronghold in Aleppo in 2016. The regime has been accused of using chemical weapons numerous times over the course of the conflict, resulting in international condemnation in 2013, 2017, and 2018. Opposition forces have maintained limited control in Idlib, in northwestern Syria, and on the Iraq-Syria border.
Efforts to reach a diplomatic resolution have been unsuccessful. Geneva peace talks on Syria—a UN-backed conference for facilitating a political transition led by UN Special Envoy Staffan de Mistura—have not been successful in reaching a political resolution, as opposition groups and Syrian regime officials struggle to find mutually acceptable terms for resolving the conflict. A new round of peace talks began in Geneva in May 2017 with an eighteen-person delegation from Syria but has since stalled. Also in 2017, peace talks initiated by Russia in Astana, Kazakhstan, with Iran, Turkey, and members of Syria’s government and armed opposition leaders resulted in a cease-fire agreement and the establishment of four de-escalation zones. However, shortly after the cease-fire was announced, attacks by Syrian government forces against rebel-held areas in the de-escalation zones resumed.
Concerns
According to estimates by the United Nations, more than 400,000 people have been killed in Syria since the start of the war. The UN reports that, as of January 2019, more than 5.6 million have fled the country, and over 6 million have been internally displaced. Many refugees have fled to Jordan and Lebanon, straining already weak infrastructure and limited resources. More than 3.4 million Syrians have fled to Turkey, and many have attempted to seek refuge in Europe.
Meanwhile, external military intervention—including the provision of arms and military equipment, training, air strikes, and even troops—in support of proxies in Syria threatens to prolong the conflict. Outside actors—namely Iran, Israel, Qatar, Russia, Saudi Arabia, Turkey, and the U.S.-led coalition—increasingly operate in proximity to one another, complicating the civil war and raising concerns over an unintended escalation. Ongoing violence and proxy conflicts could also facilitate the resurgence of terrorist groups.
Alerts
A Visual Exploration of the Conflict
Civil War in Syria
Civil War in Syria







Background Articles
Seth Jones CTC Sentinel October 2019
United States Institute of Peace September 24, 2019
Vivian Yee and Meridith Kohut New York Times August 20, 2019
Gregory Waters Middle East Institute July 18, 2019
Mona Yacoubian United States Institute of Peace July 2, 2019
CBS News June 17, 2019
Anne Barnard New York Times May 11, 2019
Tom Rollins New Humanitarian May 8, 2019
Nicholas Heras and Kaleigh Thomas Center for a New American Security April 29, 2019
Robert S. Ford Middle East Institute April 2019
International Crisis Group March 14, 2019
International Crisis Group February 25, 2019
Rukmini Callimachi New York Times February 6, 2019
Tom Westcott New Humanitarian January 30, 2019
Aaron Stein War on the Rocks January 29, 2019
Ben Hubbard New York Times January 11, 2019
Aaron Stein War on the Rocks December 11, 2018
Aron Lund IRIN News October 2, 2018
Iyad Dakka World Politics Review October 1, 2018
Steven Metz World Politics Review September 21, 2018
Carla E. Humud, Christopher M. Blanchard, and Mary Beth D. Nikitin Congressional Research Service September 21, 2018
Aaron Stein Foreign Affairs August 31, 2018
International Crisis Group June 21, 2018
Sam Heller War on the Rocks June 21, 2018
Eric Schmitt New York Times May 30, 2018
Al Jazeera April 14, 2018
Thomas Gibbons-Neff, Jeremy White, David Botti New York Times April 11, 2018
Ian Bremmer Time April 6, 2018
Daryl Kimball and Kelsey Davenport Arms Control Association April 2018
Ben Wedeman CNN March 15, 2018
Tom Perry, Laila Bassam Reuters March 15, 2018
Aron Lund IRIN News February 23, 2018
F. Brinley Bruton and Ammar Cheikh Omar NBC News February 22, 2018
International Crisis Group February 9, 2018
Ben Hubbard and Jugal K. Patel New York Times February 8, 2018
Fabrice Balanche Washington Institute February 2018
Jonathan Spyer Foreign Policy January 25, 2018
Bennett Seftel Cipher Brief January 25, 2018
Cameron Glenn Wilson Center December 19, 2017
James Dobbins, Philip Gordon, and Jeffrey Martini RAND 2017
Dmitri Trenin Foreign Affairs December 13, 2017
Robert S. Ford Foreign Affairs November/December 2017
Bennett Seftel Cipher Brief October 12, 2017
Sam Heller War on the Rocks August 10, 2017
Noah Bonsey War on the Rocks July 3, 2017
Lizzie Dearden The Independant July 1, 2017
BBC June 27, 2017
Uppsala Conflict Data Program Uppsala University
Populations at Risk Global Centre for the Responsibility to Protect
Anthony H. Cordesman Center for Strategic and International Studies May 16, 2017
Paul R. Williams and J. Trevor Ulbrick Foreign Affairs May 11, 2017
Tim Lister CNN March 22, 2017
Ben Connable, Natasha Lander, and Kimberly Jackson RAND Corporation 2017
The Soufan Group March 20, 2017
Jeffrey Martini, Heather J. Williams, and William Glendon Young RAND Corporation 2017
Atlantic Council February 14, 2017
Liz Sty, Louisa Loveluck, and Missy Ryan Washington Post December 14, 2016
Al Jazeera December 14, 2016
Robin Wright New Yorker December 12, 2016
Bennett Seftel The Cipher Brief November 2, 2016
Will Todman Center for Strategic & International Studies October 18, 2016
Steven Cook War on the Rocks October 17, 2016
Jihad Yazigi European Council on Foreign Relations September 2016
Stephanie Nebehay and Lisa Barrington Reuters September 20, 2016
Economist September 17, 2016
Robin Wright New Yorker September 16, 2016
Anne Barnard and Hwaida Saad New York Times September 15, 2016
Daveed Gartenstein-Ross and Thomas Joscelyn Foreign Affairs August 28, 2016
Tim Lister CNN August 25, 2016
Rick Gladstone New York Times August 24,2016
Dion Nissenbaum and Carol E. Lee Wall Street Journal August 24, 2016
The Carter Center
Ilan Goldenberg, Nicholas A. Heras, and Paul Scharre Center for a New American Security June 2016
Latest CFR Analysis
Philip H. Gordon CFR In Brief October 28, 2019
Henri J. Barkey, Steven A. Cook, and James M. Lindsay CFR Podcast, “The President’s Inbox” October 15, 2019
Lindsay Maizland CFR In Brief October 11, 2019
Steven A. Cook and Gayle Tzemach Lemmon CFR Conference Call October 10, 2019
Steven A. Cook CFR In Brief October 7, 2019
Zachary Laub CFR Interactive
Gayle Tzemach Lemmon, Mouaz Moustafa, Michael Mulroy, Joel Rayburn, and Thom Shanker CFR Event October 2, 2019
Gayle Tzemach Lemmon and James M. Lindsay CFR Podcast, “The President’s Inbox” June 18, 2019
James M. Lindsay and Mona Yacoubian CFR Podcast, “The President's Inbox” January 30, 2019
Ray Takeyh CFR January 11, 2019
CFR Quiz January 7, 2019
Steven A. Cook CFR December 21, 2018
Philip H. Gordon Axios December 20, 2018
James M. Lindsay, Aaron Stein, and Steven Heydemann CFR Podcast, “The President's Inbox” September 20, 2018
Jamille Bigio, Laura Kirkpatrick, and Maria Luisa Gambale CFR Blog, "Women Around the World" November 19, 2018
The World Next Week CFR Podcast September 6, 2018
Steven A. Cook CFR blog, "From the Potomac to the Euphrates" July 23, 2018
Michael Dempsey The Hill May 2, 2018
Mohammad Javad Zarif and Stephen J. Hadley CFR Event April 23, 2018
Richard N. Haass Project Syndicate April 19, 2018
Robert McMahon and Lori Esposito Murray CFR Interview April 16, 2018
John B. Bellinger III and Jonathan Masters CFR Interview April 15, 2018
Zachary Laub and Mona Yacoubian CFR Interview April 13, 2018
Glenn Kessler, Faysal Itani, Ray Takeyh, Karen E. Young, and Nussaibah Younis CFR Event April 12, 2018
CFR Podcast March 22, 2018
Rula Asad, Jamille Bigio, and Mariam Jalabi CFR Event March 15, 2018
Rachel Vogelstein and Jamille Bigio CFR Women and Foreign Policy February 23, 2018
Alexander Decina Defense One October 6, 2017
Gayle Tzemach Lemmon CFR Conference Call October 5, 2017
Steven A. Cook CFR Blog, "From the Potomac to the Euphrates" October 2, 2017
Aaron Stein Atlantic Council July 10, 2017
Jesse Marks and Alexander Decina Foreign Affairs July 6, 2017
Micah Zenko New York Times June 19, 2017
Paul R. Pillar, Kimberly Kagan, Mona Yacoubian, and Douglas A. Ollivant CFR Event June 6, 2017
Steven A. Cook CFR Book June 2017
Zachary Laub CFR Backgrounder
Elliott Abrams, Sheila Smith, Alina Polyakova, and Tiffany McGriff CFR Event April 29, 2017
Micah Zenko and Jennifer Wilson CFR Blog, "Politics, Power, and Preventive Action" April 24, 2017
Zachary Laub and Lori Esposito Murray CFR Interview April 7, 2017
Alexander Decina Defense One February 17, 2017
Zachary Laub and Robert S. Ford CFR Interview February 3, 2017
CFR Interactive
Philip H. Gordon Washington Post September 28, 2016
Alexander Decina Defense One August 26, 2016
Lina Khatib and Zachary Laub CFR Interview August 18, 2016
Gayle Tzemach Lemmon Foreign Affairs August 17, 2016
Micah Zenko Foreign Policy August 16, 2016
Rukmini Callimachi and Zachary Laub CFR Interview August 3, 2016
CFR Interactive
Alexander Decina World Politics Review May 26, 2016
Gayle Tzemach Lemmon Defense One May 19, 2016
Steven A. Cook and Amr T. Leheta Foreign Policy May 13, 2016
CFR Event April 1, 2016
Elliott Abrams CFR Blog “Pressure Points” March 15, 2016
Zachary Laub and Noah Bonsey CFR Interview February 12, 2016
Philip H. Gordon and Zachary Laub CFR Interview January 22, 2016
Philip H. Gordon CFR Policy Innovation Memorandum December 2015
Primary Sources
U.S. Department of State February 4, 2019
U.S. Department of Defense December 31, 2018
Jonathon Cohen U.S. Mission to the United Nations October 29, 2018
Nikki Haley U.S. Mission to the United Nations April 14, 2018
White House April 13, 2018
Nikki Haley U.S. Mission to the United Nations April 13, 2018
UNHCR February 2018
Rex W. Tillerson U.S. Department of State January 17, 2018
Bureau of Democracy, Human Rights, and Labor U.S. Department of State January 2018
UN Office of Counter-Terrorism July 2017
Department of State July 2017
The World Bank July 10, 2017
Hassan Hassan Combating Terrorism Center at West Point June 27, 2017
Ministry of Foreign Affairs of the Russian Federation January 26, 2017
U.S. Department of Defense
UNHCR 2017
U.S. Department of State October 3, 2016
United Nations
UNHCR
U.S. Department of State February 4, 2016
United Nations Security Council December 11, 2015
United Nations Security Council November 21, 2014
U.S. Department of State March 20, 2014
Action Group for Syria United Nations June 30, 2012
CFR Experts
Eni Enrico Mattei Senior Fellow for Middle East and Africa Studies and Director of the International Affairs Fellowship for Tenured International Relations Scholars