Though the 45th remained "de facto" segregated as an all-white unit in 1950, individual unit commanders went to great lengths to integrate reinforcements from different areas and ethnicity into their units. By 1952, it was fully integrated. Additionally, in an effort to reduce the burden on the National Guard, troops from the division were often replaced by enlisted and drafted soldiers from the active duty force. When it arrived in Korea, only half the division's manpower were National Guard troops, and over 4,500 guardsmen left between May and July 1952, continually replaced by more active duty troops, including an increasing number of African Americans. Though the division was no longer an "All-Oklahoma" unit, leaders opted to keep its designation as the 45th Infantry Division.