USAR XV U.S. ARMY CORPS (RESERVE)

The XV U.S. Army Corps (Reserve), commonly known as USAR XV U.S. Army Corps, traces its origins to World War II, where it was first activated in 1943 and played a pivotal role in the European Theater, notably participating in the Rhineland, Ardennes-Alsace, and Central Europe campaigns. After the war, the corps was inactivated and later reactivated as a U.S. Army Reserve formation, with headquarters based in Los Angeles, California. Throughout the Cold War era, the XV Corps (Reserve) was responsible for supervising and training reserve units in the western United States, ensuring their readiness for mobilization. The corps was eventually inactivated in the late 1960s as part of a broader realignment and reduction of Army Reserve command structures.