In November 1962, the 455th Strategic Missile Wing was the fourth United States Air Force LGM-30 Minuteman ICBM wing, the third with the LGM-30B Minuteman I. In 1962 and 1963 150 missiles were deployed to silos controlled by three squadrons of 455th in North Dakota. On 25 June 1968 the 91st Bombardment Wing was reassigned to Minot AFB from Glasgow AFB, Montana which was closed and assumed control of the three Minuteman squadrons of the 455th. The senior 91st SMW had organizational roots dating from World War II and had been deployed from Glasgow AFB to Southeast Asia, where it had been flying combat missions with the B-52 Stratofortress during the Vietnam War. The 455th SMW was inactivated.