 In 1975, the 112th Tactical Fighter Group ended its air defense mission, receiving its first A-7D Corsair II aircraft and was reassigned to the Tactical Air Command.In 1991, with the retirement of the A-7D, the 112th TFG became the 112th Air Refueling Group (ARG) under Strategic Air Command, receiving KC-135 Stratotankers that it operated jointly with the 171st, which had become an air refueling Wing at Pittsburgh in October 1972.Several Air Guard units from Pennsylvania were mobilized in 1990-1991 for duty in Southwest Asia during Operation Desert Shield and Operation Desert Storm.