This report provides background on the Islamic State organization, discusses its goals, operations, and affiliates, reviews U.S. legislative and policy debates, and describes select FY2017 legislative proposals.

This report discusses the difficulties of collecting war-related casualty data in Iraq and Syria and provides an overview of some of the current estimated figures available through selected organizations.

This report describes the key elements of a nuclear weapons program; explains the available information regarding cooperation among Iran, North Korea, and Syria on ballistic missiles and nuclear technology; and discusses some specific issues for Congress.

This report discusses the ongoing conflict in Syria and provides an overview of U.S. Policy responses. The rise of the insurgent terrorist group known as the Islamic State (IS, aka the Islamic State of Iraq and the Levant or ISIL/ISIS) and Russia's military intervention on behalf of the Syrian government have reshaped debates over U.S. policy toward the ongoing civil conflict in Syria, now in its fifth year.

This report discusses the ongoing conflict in Syria and provides an overview of U.S. policy responses. The rise of the insurgent terrorist group known as the Islamic State (IS, aka the Islamic State of Iraq and the Levant or ISIL/ISIS) and Russia's military intervention on behalf of the Syrian government have reshaped debates over U.S. policy toward the ongoing civil conflict in Syria, now in its fifth year.

This report discusses the ongoing conflict in Syria and U.S. policy regarding the conflict and potential resolutions. It includes information on the recent U.S., French, and British joint missile strike in response to the the use of chemical weapons in Douma, Syria by Syrian government forces.

This report discusses the ongoing conflict in Syria and past and current U.S. policies regarding the conflict and U.S. involvement in it. Topics covered include U.S. military aid and humanitarian assistance to groups in Syria, proposed legislation related to Syria n Congress, current U.S. policy aims, and recent events in Syria both diplomatically and militarily.

This report discusses the ongoing conflict in Syria, recent developments in Syria such as the siege of Eastern Ghouta, and U.S. policy toward Syria and involvement in the conflict.

This report discusses the President's plan for U.S. involvement in Syria in the future and the five main goals the U.S. hopes to accomplish there.

This report analyzes an array of bilateral issues that continue to affect relations between the United States and Syria. It includes descriptions of recent developments, issues for Congress, U.S.-Syrian relations, U.S. Sanctions, and future prospects related to the role of Congress.

This report discusses executive authority to authorize force in the crisis involving the Islamic State (IS, also known as ISIL or ISIS), which raised significant concerns for the United States.

This report discusses issues related to peace in the Middle East, including post-Gulf War negotiations between Israel and the Palestinians, Jordan, Syria, and Lebanon; U.S. interest in these and continuing negotiations and peacetalks between Middle Eastern countries; and the role of the U.S., the U.N., the European Union, and Russia in Middle Eastern relations.

This report discusses the current crisis involving the Islamic State, which is a transnational Sunni Islamist insurgent and terrorist group that has expanded its control over areas of parts of Iraq and Syria since 2013.

This report discusses the current crisis involving the Islamic State, which is a transnational Sunni Islamist insurgent and terrorist group that has expanded its control over areas of parts of Iraq and Syria since 2013. In December 2014, the 113th Congress provided new authorities and funds for efforts to combat the Islamic State organization in Syria and Iraq in the FY2015 national defense authorization (P.L. 113-291) and consolidated appropriations acts (P.L. 113-235).

This report reviews the authority granted in H.J.Res. 124 and explores similarities and differences among the H.J.Res. 124 authority, the President's requests, and other proposals that may be considered by Congress, including during anticipated consideration of FY2015 full-year appropriations or defense authorization (H.R. 4435/S. 2410) legislation.

This report provides background and current information on the Islamic State, a transnational Sunni Islamist insurgent and terrorist group that has expanded its control over areas of northwestern Iraq and northeastern Syria since 2013. The report also examines possible U.S. policy options in the wake of increasing international outrage at the Islamic States' brutality and apparent disregard for typical human rights conventions.

This report briefly discusses the Islamic State's (IS, or alternatively, Islamic State in Iraq and the Levant, ISIL, or Islamic State in Iraq and Syria, ISIS) kidnapping of American citizens and the implications for congressional response.

This report addresses select legal questions raised by the use of military force against Islamic State (IS). Questions addressed in this report include potential sources (and limitations) of presidential authority to use military force against the Islamic State without congressional authorization; the potential relevance of the 2002 Authorization for Use of Military Force Against Iraq (2002 Iraq AUMF; P.L. 107-243) and the 2001 Authorization for Use of Military Force (2001 AUMF; P.L. 107-40); the applicability of the United Nations Charter to ongoing U.S. military strikes in Iraq and any prospective strikes against IS forces in Syria; and the constraints imposed by the War Powers Resolution upon U.S. military action that has not been authorized by Congress.

This report briefly discusses different options available for confronting the Islamic State (IS, formerly known as ISIS or ISIL) with the use of military force. The examines the legal considerations relevant to each approach.

This report discusses the history and current state of Syria's chemical and biological weapon programs and possible U.S. government programs that could be used to dismantle stockpiles if the Assad regime were to collapse.

This report discusses the recent conflict in Syria including an overview of the situation, information about anti- and pro-Asad forces, background on chemical weapons and disarmament, plans for U.S. policy and assistance, and a general sense of the future outlook.

This report briefly discusses the Syria-based terrorists referred to as the "Khorasan Group" and the U.S. airstrikes conducted against them in late September 2014.

This report briefly covers the formal declaration and subsequent destruction of Syria's chemical weapons program. The report also mentions newer allegations of further use of chemical weapons that did not fall under the Chemical Weapons Convention (CWC) ban.

This report discusses the continuing conflict in Syria including recent regime losses in confrontations with forces of the Islamic State (IS, aka the Islamic State of Iraq and the Levant or ISIL/ISIS) in northeastern Syria. The report also covers Syrian chemical weapons disarmament and U.S. policy.