4th US ARMY

The 4th United States Army was first activated during World War I in 1918 but was quickly demobilized after the war ended. It was reactivated in 1932 and played a significant role in training and organizing troops on the home front during World War II, primarily overseeing units in the western United States. Headquartered at various times at Fort Sam Houston, Texas, the 4th Army was responsible for preparing soldiers for overseas combat and managing continental defense. The unit was inactivated in 1991 as part of a post-Cold War reorganization of the U.S. Army.