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 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 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 U.S. and European assessments of and responses to the foreign fighter phenomenon. It focuses on government policies primarily in Western European countries and analyzes EU measures to counter the foreign fighter threat given the EU's largely open internal borders and that 23 EU member states belong to the U.S. Visa Waiver Program.