 However, the wing's return to the training mission was short-lived, for on 5 September 1963, the 24th and 39th Squadrons returned to combat status, and three weeks later, on 25 September, the 39th Bombardment Squadron and 4129th Combat Crew Training Squadron were discontinued.In June 1965, the 310th Air Refueling Squadron moved to Walker from Schilling Air Force Base.The 310th had supported the Boeing B-47 Stratojets of the 310th Bombardment Wing at Schilling with Boeing KC-97s, but in preparation for its move to Walker, had re-equipped with KC-135s during 1964.