Operation Iraqi Freedom overthrew Saddam Hussein’s regime, but Iraq remains unstable because of Sunni Arab resentment and a related insurgency, compounded by Sunni-Shiite violence that a January 2007 national intelligence estimate says has key elements of a “civil war.” Mounting U.S. casualties and financial costs — without clear signs of security progress — have intensified a debate within the United States over whether to wind down U.S. involvement without completely accomplishing initial U.S. goals.

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 also discusses the continued tensions between various Iraqi sociocultural groups.

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 provides background and analysis on the politics of Iraq, including its communities, its governing personalities and factions, security forces and militias, and the government's human rights record.