10 pilots flew over 100 missions, and two Utah pilots were killed in this war. One Utah ANG pilot, Capt. Clifford Jolley, flying an F-86 Sabrejet, shot down seven soviet made MIG-15 aircraft and became the first Air Guard "Ace" of the Korean War. At Clovis, elements of the 140th FBW took part in Operation Tumbler-Snapper – 1952, a nuclear bomb test in Nevada. On 15 November 1952, the elements of the 140th returned to Air National Guard control in their respective states. Cold War Upon return to Utah state control, the 191st was re-equipped by Tactical Air Command (TAC) with F-51D Mustangs. On 1 June 1955 it was transferred to Air Defense Command (ADC) and re-designated as the 191st Fighter-Interceptor Squadron, and received its first jet aircraft, the F-86A Sabre which it used as a day-only interceptor for the air defense of Utah. On 1 July 1958, the 191st was authorized to expand to a group level, and the 151st Fighter-Interceptor Group was established by the National Guard Bureau. The 191st FIS becoming the group's flying squadron. Other squadrons assigned into the group were the 151st Headquarters, 151st Material Squadron (Maintenance), 151st Combat Support Squadron, and the 1151st USAF Dispensary. Also, in 1958, the 151st FIW implemented the ADC Runway Alert Program, in which interceptors of the 191st Fighter-Interceptor Squadron were committed to a five-minute runway alert. The F-86s were replaced by the F-86L Sabre Interceptor, a day/night/all-weather aircraft designed to be integrated into the ADC SAGE interceptor direction and control system. Transport mission On 1 April 1961, the 151st was transferred from Air Defense Command to the Military Air Transport Service (MATS), and re-equipped with C-97 Stratofreighter. The 151st Air Transport Group expanded its military airlift role to worldwide mission capabilities. Entering the realm of Southeast Asia and the Vietnam War, the Utah Air National Guard flew its first mission into the Southeast Asia theater combat zone in late 1964, and continued to do so throughout the Vietnam War years. In January 1966, the unit became the 151st Military Airlift Group (151 MAG), under the Military Airlift Command [MAC]. In 1969, the C-97s were retired and replaced by the C-124C Globemaster II. During the Vietnam War, Utah Air Guard crews flew 6,600 hours of support missions for American forces. Air Refueling The 151st Military Airlift Group was transferred to Strategic Air Command (SAC) on 1 July 1972 and