Air Mobility Command was established on 1 June 1992, and was formed from elements of the inactivated Military Airlift Command (MAC) and Strategic Air Command (SAC). AMC melded MAC's worldwide airlift system of primarily C-5 Galaxy, C-17 Globemaster III, and C-130 Hercules airlift aircraft with SAC's tanker force of KC-135 Stratotanker and KC-10 Extender aerial refueling aircraft, the former aircraft having been freed from their strategic nuclear strike commitment to SAC's B-52 Stratofortress and B-1 Lancer bomber fleet by the end of the Cold War and the dissolution of the Soviet Union.