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 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 discusses the ongoing conflict in Syria and U.S. policy regarding the conflict and potential resolutions.

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 ongoing conflict in Syria and previous actions taken by the United States to intervene in the conflict, mediate peace, and assist refugees as well current considerations related to Syria in 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 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 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 U.S. policy approaches for countering the financial resources of the Islamic State, which has seized significant territory in Iraq and Syria and threatened to conduct attacks against the United States and its citizens.

This report briefly discusses Russia's military presence in Syria. In recent weeks, Russia has moved military equipment and personnel to Syria, which could potentially be used to resupply the Asad regime or lead to a direct Russian intervention in the Syrian civil war.

This report discusses the situation immediately following the completion of the U.S. withdrawal from Iraq on December 18, 2011, when relations among major political factions worsened substantially, threatening Iraq's stability and the legacy of the U.S. intervention in Iraq. It includes an overview of historical and current political, military, and governance issues as well as an analysis of Iraq in relation to the other nations in the region.

This report discusses the situation immediately following the completion of the U.S. withdrawal from Iraq on December 18, 2011, when relations among major political factions worsened substantially, threatening Iraq's stability and the legacy of the U.S. intervention in Iraq. It includes an overview of historical and current political, military, and governance issues as well as an analysis of Iraq in relation to the other nations in the region.

This report discusses the situation immediately following the completion of the U.S. withdrawal from Iraq on December 18, 2011, when relations among major political factions worsened substantially, threatening Iraq's stability and the legacy of the U.S. intervention in Iraq. It includes an overview of historical and current political, military, and governance issues as well as an analysis of Iraq in relation to the other nations in the region.

This report discusses the situation immediately following the completion of the U.S. withdrawal from Iraq on December 18, 2011, when relations among major political factions worsened substantially, threatening Iraq's stability and the legacy of the U.S. intervention in Iraq. It includes an overview of historical and current political, military, and governance issues as well as an analysis of Iraq in relation to the other nations in the region.

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 discusses the problems facing Iraq as the Islamic State (IS, aka the Islamic State of Iraq and the Levant, ISIL/ISIS) gains power in the region. IS is a transnational Sunni Islamist insurgent and terrorist group that has expanded its control over areas of northwestern Iraq and northeastern Syria since 2013, threatening the security of both countries and drawing increased attention from the international community. The Islamic State has thrived in the disaffected Sunni Muslim-inhabited areas of Iraq and in the remote provinces of Syria torn by the civil war. The Islamic State's tactics have drawn the ire of the international community, increasing U.S. attention on Iraq's political problems and on the civil war in Syria.

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 analyzes the offensive in northern and central Iraq led by the Islamic State of Iraq and the Levant (ISIL, aka ISIS) -- a Sunni Islamist insurgent and terrorist group -- with a discussion of the offensive's implications, the U.S. response, and related issues.

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 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.