sentences:  In 1955 it began receiving an early model of the Boeing B-52 Stratofortress and upgraded to various models over the next 40 years.Taken off nuclear alert after the end of the Cold War, the squadron was inactivated in 1994 with the inactivation of its parent unit and the close of Castle Air Force Base.The squadron deployed aircraft and personnel to the 1708th Provisional Bombardment Wing at Prince Abdullah Air Base, Jeddah, Saudi Arabia, from August 1990 and to the 4300th Provisional Bombardment Wing at Diego Garcia Air Base, British Indian Ocean Territories from January 1991 for Operation Desert Storm.