Iran's influence over the post-Saddam government in Iraq is substantial because the predominant parties in that government have long enjoyed Tehran's sponsorship. An emerging concern is that Iran's influence has extended to support for militant groups in Iraq. U.S. officials say that sophisticated explosive devices are entering Iraq from Iran, suggesting that Iran, or factions within Iran, are backing Iraqi factions that use violence to oppose the U.S. presence in Iraq.

Since October 2001, Improvised Explosive Devices (IEDs, or roadside bombs) have been responsible for many of the more than 2,000 combat deaths in Iraq, and 178 combat deaths in Afghanistan. IEDs are hidden behind signs and guardrails, under roadside debris, or inside animal carcasses, and encounters with these bombs are becoming more numerous and deadly in both Iraq and Afghanistan. Department of Defense (DOD) efforts to counter IEDs have proven only marginally effective, and U.S. forces continue to be exposed to the threat at military checkpoints, or whenever on patrol. IEDs are increasingly being used in Afghanistan, and DOD reportedly is concerned that they might eventually be more widely used by other insurgents and terrorists worldwide.

Responsibility for overseeing reconstruction in post-conflict Iraq initially fell to the Office of Reconstruction and Humanitarian Assistance (ORHA). Established in early 2003, ORHA had been replaced by June of that year by the Coalition Provisional Authority (CPA). On June 28, 2004, CPA ceased operations. Whether CPA was a federal agency is unclear. Some executive branch documents supported the notion that it was created by the President. Another possibility is that the authority was created by, or pursuant to, United Nations Security Council Resolution 1483. This report discusses the issue of CPA's status as an agency, including the uncertain circumstances regarding its creation and demise, as well as relevant legislation and subsequent lawsuits.

This report examines a number of issues being considered by Congress as the FY2007 National Defense Authorization Act evolves. In each case, a brief synopsis is provided that includes background information, a comparison of the House and Senate provisions, if any, and a brief discussion of the issue. Where appropriate, other CRS products are identified to provide more detailed background information and analysis of the issue. For each issue, a CRS analyst is identified and contact information is provided.

This report provides statistics on fatalities during Operation Iraqi Freedom, which began on March 19, 2003, as well as on the number of fatalities since May 1, 2003, plus statistics on those wounded, but not killed, since March 19, 2003.