X Corps (United States) - Post-Korean War

Post-Korean War

In the years following the Korean War, X Corps served as a regional headquarters, having administrative, logistical, and training responsibility for both active and Army Reserve units in the northwestern portion of the Continental United States.

X Corps was deactivated on 31 March 1968, as part of the compromise between U.S. Secretary of Defense Robert S. McNamara who wanted to merge the Army Reserve into the Army National Guard, and the United States Congress who wanted to maintain the Army Reserve as it then existed. Under the compromise plan, all of the combat divisions and most separate combat brigades of the Army Reserve were deactivated with a corresponding increase in the National Guard; at the same time, non-divisional combat support and combat service support units were reallocated in the Army Reserve. The fourteen area corps were deactivated; in their place, eighteen army reserve commands ("ARCOMs") were established. Each ARCOM was, in turn, assigned to one of five continental U.S. armies ("CONUSAs") under Continental Army Command ("CONARC"). The bulk of X Corps' Army Reserve units were assigned to the 124th Army Reserve Command.