Thewing was first activated as the55th Bombardment Operational Training Wing in March 1943 atMacDill Field, Florida. Variousgroups were attached to the wing for short periods for training, but none were permanently assigned.[1]
Assigned toFifteenth Air Force, being stationed atBari, Italy and was inactivated on 9 September 1945.[1]
Allocated to theOhio Air National Guard for command and control origination for units in the Ohio River Valley region of the United States. Extended federal recognition and activated on 21 August 1946.
At the end of October 1950, the Air National Guard converted to the wing-base (Hobson Plan) organization. As a result, the wing was withdrawn from the Ohio ANG and was inactivated on 31 October 1950. The121st Fighter Wing was established by theNational Guard Bureau, allocated to the state of Ohio, recognized and activated 1 November 1950; assuming the personnel, equipment and mission of the inactivated 55th Fighter Wing.