This report summarizes what is currently known publicly about companies that provide personnel for security missions in Iraq and some sources of controversy surrounding them. A treatment of legal status and authorities follows, including an overview of relevant international law as well as Iraqi law, which currently consists primarily of Coalition Provisional Authority (CPA) orders that remain in effect until superceded. The various possible means for prosecuting contractors under U.S. law in civilian or military courts are detailed, followed by a discussion of possible issues for Congress, including whether protective services are inherently governmental functions. The report also summarizes pertinent legislative proposals.

Iraq's current government, the result of a U.S.-supported election process designed to produce democracy, is instead a sectarian government incapable of reconciliation. The Administration says that the passage of some key laws represents progress on national reconciliation, and is a result of the U.S. "troop surge." Others say that combat among Shiite groups since March 2008, possibly motivated by provincial elections planned for October 2008, shows that force will not stabilize Iraq.

The Kurdish-inhabited region of northern Iraq is relatively peaceful and prospering economically, but the Iraqi Kurds' political autonomy and political strength in post- Saddam Iraq is causing friction with Arab leaders in Iraq, Turkey, and Iran. However, an overall reduction in violence in Iraq, coupled with continued U.S. political influence over the Kurds, is likely to prevent a destabilizing escalation of the Iraqi Kurd-Arab disputes. Also see CRS Report RL31339, Iraq: Post-Saddam Governance and Security, by Kenneth Katzman.

Iran is materially assisting and influencing major Shiite Muslim factions in Iraq, most of which have ideological, political, and religious ties to Tehran. Among these factions is that of hardline anti-U.S. cleric Moqtada Al Sadr, whose Mahdi Army militia, according to some observers, serves as a proxy force for Tehran against the United States.