This report summarizes the eight cases initiated by Members of Congress in which final rulings were reached, which concerned U.S. military activities in El Salvador, Nicaragua, and Grenada; military action taken during the Persian Gulf conflict between Iraq and Iran; U.S. activities in response to Iraq's invasion of Kuwait (prior to the congressional authorization); U.S. participation in NATO's action in Kosovo and Yugoslavia; and U.S. military action in Libya.

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 examines current private security contractor (PSC) trends in Afghanistan and Iraq, steps the Department of Defense (DOD) has taken to improve oversight and management, and the impact that using private security personnel can have on military operations. It also reviews steps Congress has taken to exercise oversight over the use of PSCs and includes options for Congress.

This report provides an overview of Iraq's political transition from the dictatorship of Saddam Hussein to a plural polity that encompasses varying sects and ideological and political factions. This report also addresses ongoing governmental instabilities and their causes, as well as U.S. concerns about possible Iranian influence in Iraq as U.S. forces depart the country.

This report discusses the state of Iraqi politics, governance, and human rights, including the worsening relations between local Sunni and Shiite populations.

This report presents statistics regarding U.S. military casualties in the active Operation Enduring Freedom (OEF, Afghanistan), as well as operations that have ended: Operation New Dawn (OND, Iraq) and Operation Iraqi Freedom (OIF, Iraq). It includes statistics on post-traumatic stress disorder (PTSD), traumatic brain injury (TBI), amputations, evacuations, and the demographics of casualties. Some of these statistics are publicly available at the Department of Defense's (DOD's) website; others have been obtained through contact with experts at the DOD.

This report discusses the state of Iraqi politics, governance, and human rights. Topics include the worsening relations between local Sunni and Shiite populations.

This report presents U.S. military casualties as well as governmental and nongovernmental estimates of Iraqi civilian, police, and security forces casualties.

This report examines the current crisis in Iraq regarding the Islamic State, a transnational Sunni Islamist insurgent and terrorist group that has expanded its control over areas of parts of Iraq and Syria since 2013. There is debate over the degree to which the Islamic State organization might represent a direct terrorist threat to the U.S. homeland or to U.S. facilities and personnel in the region.

This report discusses the authorization for use of military force against the Islamic State (IS), the crisis caused by IS and the U.S. response.

This report discusses the current political and social climate of Iraq, specifically in regards to the influence of the U.S. military presence over recent years. This report addresses planned and possible future efforts under the Obama Administration, including the scheduled gradual troops withdrawal.

This report presents statistics regarding U.S. military casualties in the active Operation Enduring Freedom (OEF, Afghanistan), as well as operations that have ended: Operation New Dawn (OND, Iraq) and Operation Iraqi Freedom (OIF, Iraq). This report includes statistics on post-traumatic stress disorder (PTSD), traumatic brain injury (TBI), amputations, evacuations, and the demographics of casualties.

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 analyzes the special immigrant visas (SIVs) classifications for Iraqis and Afghans within the context of both the larger special immigrant category and selected other permanent admissions categories. It discusses the legislative changes to the individual Iraqi and Afghan special immigrant programs since their initial authorization, provides statistics on visa issuances, and considers challenges that have faced the programs.

This report discusses political, military, and humanitarian developments in Iraq in 2017 and 2018 such as the defeat of the Islamic State, displaced persons returning home, and upcoming elections.