From The NY Times

The United States still has about 300,000 air, land and naval forces in the gulf region, including 135,000 in Iraq. But that is already down from a peak of 350,000 during the Iraq war, and the number shrinks every week.

Only two of the five aircraft carriers made available for the war are still sending out gulf-related air missions. More than 100 Air Force planes have left the region for home. A brigade of the Army's 82nd Airborne Division has flown home, and several thousand marines are preparing to load back onto their ships.

But military commanders say the United States will still keep perhaps 75,000 to 125,000 troops -- and possibly more -- in Iraq for the next several months to two years, helping secure the country to allow an interim civilian Iraqi authority to form, and then have a new elected Iraqi government take root.