The I Corps is a corps of the United States Army headquartered in Joint Base Lewis-McChord, Washington. It is a major formation of United States Army Pacific (USARPAC) and its current mission involves administrative oversight of army units in the Asia-Pacific region, including the Pacific Pathways program.
LVTs head for the invasion beaches at Humboldt Bay, Netherlands New Guinea, during the Hollandia landing in the campaign
Occupation forces in Tokyo, 1946.
Defense of the Pusan Perimeter
South Korean soldiers reinforcing defenses along Old Baldy Hill
Corps is a term used for several different kinds of organization. A military innovation by Napoleon I, the formation was first named as such in 1805. The size of a corps varies greatly, but two to five divisions and anywhere from 40,000 to 80,000 are the numbers stated by the US Department of Defense.
The XVIII Airborne Corps command group returns home from Operation Iraqi Freedom in 2009