The wing became fully organized on 26 October 1959 when the 31st Bombardment Squadron (BS), consisting of 15 Boeing B-52 Stratofortresses moved to Beale from Travis Air Force Base, California where it had been one of the three squadrons of the 5th Bombardment Wing along with the 63d Aviation Depot Squadron whose mission was to oversee the wing's special weapons. Starting in 1960, one third of the wing's aircraft were maintained on fifteen-minute alert, fully fueled, armed and ready for combat to reduce vulnerability to a Soviet missile strike. This was increased to half the wing's aircraft in 1962. The 4126th (and later the 456th) continued to maintain an alert commitment until inactivation. The wing's parent 14th Air Division also moved to Beale and the 4126th became responsible to provide support to the division as well as the San Francisco Air Defense Sector of Air Defense Command, which activated at Beale in 1959. The wing added the Intercontinental ballistic missile mission on 1 February 1961, when the 851st Strategic Missile Squadron equipped with HGM-25A Titan I missiles was activated and assigned to the wing. In 1962, the wing's bombers began to be equipped with the GAM-77 Hound Dog and the GAM-72 Quail air-launched cruise missiles, The 4126th Airborne Missile Maintenance Squadron was activated in November to maintain these missiles