The Army says it will eliminate one infantry brigade at Fort Riley.
Chief of Staff General Raymond Odierno says the 4th Brigade Combat Team of the 1st Infantry Division will be inactivated.
The move is part of the Army's plans to reduce its overall strength by 80,000 soldiers, down to 490,000.
The military had already planned the cuts before federal budget reductions were put in place in March.
Fort Riley is home to nearly 18,000 soldiers and three brigades of the 1st Infantry Division, as well as a combat aviation brigade.
Odierno says there will also be a reduction of civilian employees, but an exact number has not been determined.