The regiment was relieved from assignment to the 24th Cavalry Division in September 1940, inducted into federal service on 13 January 1941, and moved to Camp Bowie, Texas, on 25 January 1941.
In September 1940, the regiment left its position with the 24th Cavalry Division; it entered federal service on January 13, 1941, and was moved to Camp Bowie, Texas, by January 25, 1941.