"Varying media estimates of military forces in Iraq have raised concerns about the actual number of troops deployed in Operation Iraqi Freedom (OIF). As interest in troop level deployments continue, recently, President Bush announced 'a new strategy for Iraq' on January 10, 2007, including a planned gradual increase of more than 20,000 U.S. troops on the ground in Baghdad and Anbar province in the coming several months. This report provides solely Department of Defense (DOD) statistical information on U.S. forces serving in Iraq. It also provides brief official information on the military units scheduled for the next rotation of duty into Iraq. As of January 1, 2007, according to DOD, the United States had 128,569 troops stationed in Iraq -- 106,296 active component and 22,273 National Guard or Reserves. For security reasons, DOD does not routinely report the composition, size, or specific destination of military forces deployed to the Persian Gulf. This report will be updated upon receipt of new DOD data. For additional information on U.S. forces, see CRS [Congressional Research Service] Report RL31701, 'Iraq: U.S. Military Operations', by Steve Bowman."
CRS Report for Congress, RS22449