The regiment was attached to 83d Infantry Division between 3–7 December 1944, and then returned to 4th Infantry Division in Luxembourg on 12 December 1944. The 22d then moved to Belgium on 28 January 1945, and re-entered Germany on 7 February 1945, where it remained on mop-up and occupation until 12 July 1945, when it returned to the New York POE, and moved to its temporary home at Camp Butner, North Carolina while the regiment trained for movement to Japan; however, the war in the Pacific terminated, and the regiment remained at Camp Butner until it was inactivated on 5 March 1946.