Nearly every U.S. Army and Marine combat unit, and several National Guard and Reserve units, have been to Iraq at least once. Many are on their second or even third rotations; rotations are typically one year for Army units, seven months for Marine units. Regular rotations, in and out of Iraq or within the country, complicate brigade and battalion efforts to get to know the local scene, earn the trust of the population, and build a sense of cooperation.

Many military units are under significant strain. Because the harsh conditions in Iraq are wearing out equipment more quickly than anticipated, many units do not have fully functional equipment for training when they redeploy to the United States. An extraordinary amount of sacrifice has been asked of our men and women in uniform, and of their families. The American military has little reserve force to call on if it needs ground forces to respond to other crises around the world.

A primary mission of U.S. military strategy in Iraq is the training of competent Iraqi security forces. By the end of 2006, the Multi-National Security Transition Command-Iraq under American leadership is expected to have trained and equipped a target number of approximately 326,000 Iraqi security services. That figure includes 138,000 members of the Iraqi Army and 188,000 Iraqi police. Iraqis have operational control over roughly one-third of Iraqi security forces; the U.S. has operational control over most of the rest. No U.S. forces are under Iraqi command.

The Iraqi Army

The Iraqi Army is making fitful progress toward becoming a reliable and disciplined fighting force loyal to the national government. By the end of 2006, the Iraqi Army is expected to comprise 118 battalions formed into 36 brigades under the command of 10 divisions. Although the Army is one of the more professional Iraqi institutions, its performance has been uneven. The training numbers are impressive, but they represent only part of the story.

Significant questions remain about the ethnic composition and loyalties of some Iraqi units—specifically, whether they will carry out missions on behalf of national goals instead of a sectarian agenda. Of Iraq's 10 planned divisions, those that are even-numbered are made up of Iraqis who signed up to serve in a specific area, and they have been reluctant to redeploy to other areas of the country. As a result, elements of the Army have refused to carry out missions.

The Iraqi Army is also confronted by several other significant challenges:

The Iraqi Police

The state of the Iraqi police is substantially worse than that of the Iraqi Army. The Iraqi Police Service currently numbers roughly 135,000 and is responsible for local policing. It has neither the training nor legal authority to conduct criminal investigations, nor the firepower to take on organized crime, insurgents, or militias. The Iraqi National Police numbers roughly 25,000 and its officers have been trained in counterinsurgency operations, not police work. The Border Enforcement Department numbers roughly 28,000.