This report presents various governmental and nongovernmental estimates of Iraqi civilian dead and wounded. The Department of Defense (DOD) regularly updates total U.S. military death and wounded statistics from Operation Iraqi Freedom (OIF). However, no Iraqi or U.S. government office regularly releases publicly available statistics on Iraqi civilian deaths or civilians who have been wounded. Statistics on Iraqi civilian dead and wounded are sometimes available through alternative sources, such as nonprofit organizations, or through statements made by officials to the press. Because these estimates are based on varying time periods and have been created using differing methodologies, readers should exercise caution when using these statistics and should look on them as guideposts rather than as statements of fact.

This report presents various governmental and non-governmental estimates of Iraqi police and security forces fatalities. The Department of Defense (DOD) regularly updates total U.S. military deaths and wounded statistics from Operation Iraqi Freedom (OIF), as reflected in CRS Report RS21578, Iraq: U.S. Casualties, and has released the monthly pattern of Iraqi security forces deaths. For information on Iraqi civilian deaths, see CRS Report RS22537, Iraqi Civilian Deaths Estimates. Because these estimates are based on varying time periods and have been created using differing methodologies, readers should exercise caution when using them and should look on them as guideposts rather than as statements of fact.

This report discusses the relationship between Iraq and Iran in the post-Saddam Hussein era, with particular focus on what Iran's intentions and/or long-term goals may be for increasing its influence in Iraq. The report explores the various strategies that Iran has used to spread its influence throughout Iraq's military and political spheres. The report also addresses the United States' concern over the Iran-Iraq relationship, especially as it concerns armed Shiite factions and U.S. efforts to stabilize Iraq.

This report provides a brief overview of the major issues facing the Iraqi Kurds. The Iraqi Kurds' political autonomy, demands, and ambitions are causing friction with Christian and other minorities in the north, Prime Minister Nuri al-Maliki and other Arab leaders of Iraq, neighboring Turkey, and Iran. The U.S. ability to keep these tensions contained could wane as U.S. forces, as planned, draw down from Iraq over the next three years.

This report includes a historical background of the Sunni-Shiite split and discusses the differences in religious beliefs and practices between and within each Islamic sect as well as their similarities. The report also relates Sunni and Shiite religious beliefs to discussions of terrorism and sectarian violence that may be of interest during the 111th Congress.

This report contains a table that provides statistics on fatalities and injuries during Operation Iraqi Freedom, which began on March 19, 2003.