This report provides background on the Islamic State organization, discussing its goals, operations, and affiliates, as well as analyzing related U.S. legislative and policy debates.

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 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 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.

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This report analyzes the current unrest in Syria and the U.S. response to the Syrian government's crackdown against demonstrators. It also provides background information on U.S. sanctions against the Asad regime and its supporters.

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 concerns for the Middle Eastern governments and the United States regarding the armed offensive of the Islamic State (IS, also known as ISIL or ISIS) in northern and western Iraq and northeastern Syria.