This report provides a brief history of the chemical weapons program in Syria. It discusses policy issues, latest development regarding the current chemical weapons program.

This report examines the ongoing humanitarian crisis in Syria and the U.S. and international response and will be updated as events warrant.

This report examines the ongoing humanitarian crisis in Syria and the U.S. and international response. The report discusses the use of chemical weapons in Syria on August 21, 2013, that triggered an intense debate over possible U.S. military intervention.

This report discusses the reports of a mass casualty chemical weapons attack in the suburbs of Damascus and the possible punitive U.S. military action against the Asad regime.

This report discusses reports of a mass casualty chemical weapons attack in the suburbs of Damascus and the possible punitive U.S. military action against the Asad regime.

This report provides a brief history of the chemical weapons program in Syria. It discusses policy issues, latest development regarding the current chemical weapons program.

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 provides background on the Islamic State organization, discusses its goals, operations, and affiliates, reviews U.S. legislative and policy debates, and reviews relevant legislation from the 114th and 115th Congresses.

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 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 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 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 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.

This report discusses Syria's chemical weapon supplies, efforts to have them destroyed, recent uses of chemical weapons there, and issues related to undeclared chemical weapon stocks.

This report contains background information on the armed conflict in Syria. It also showcases the U.S. response to the conflict.

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 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.