The 111th Air Defense Wing is an inactive wing of the United States Air Force. It was organized as the 111th Composite Wing in 1950. It was mobilized for the Korean War in 1951, and, as the 111th Strategic Reconnaissance Wing, became part of Strategic Air Command until inactivating in 1953 and returning to state control. It assumed an air defense mission in the eastern United States until inactivating in 1958.
The wing was first organized at Olmsted Air Force Base, Pennsylvania as the 111th Composite Wing on 1 November 1950, when the National Guard reorganized its operational units under the Wing Base organization used by the regular Air Force since 1947. Under this plan, operational groups and their supporting units were united under a single wing. The new wing drew most of its initial personnel from the 53d Fighter Wing, which was simultaneously inactivated. When the 142d Fighter Squadron of the Delaware National Guard was reassigned away from the wing's 111th Composite Group, the wing became the 111th Bombardment Wing. On 1 January 1951, the wing moved to Philadelphia International Airport, where it joined the 111th Group.
The wing was mobilized on 1 April 1951 for the Korean War. Upon mobilization, it was broken up, with the 111th Group's 117th and 122d Bombardment Squadrons moving to Langley Air Force Base with the wing's Douglas B-26 Invaders to become crew training units. The wing, group and 103d Bombardment Squadron moved to Fairchild Air Force Base, Washington, where they were assigned to Strategic Air Command (SAC)'s 57th Air Division.
In August, the wing became the 111th Strategic Reconnaissance Wing and began to equip with Boeing RB-29 Superfortress reconnaissance aircraft. On 16 June 1952, the wing reorganized into the dual deputy system adopted by SAC. The wing's 111th Strategic Reconnaissance and 111th Maintenance and Supply Groups were inactivated and their squadrons reassigned directly to the wing. In the fall of 1952, the wing began replacing its RB-29s with Convair RB-36 Peacemakers. On 1 January 1953, the wing was inactivated and returned to the Air National Guard, transferring its personel, aircraft and mission to the 99th Strategic Reconnaissance Wing, which was simultaneously activated at Fairchild.
The 111th returned to control of the Pennsylvania Air National Guard, redesignated as the 111th Fighter-Bomber Wing and reactivated at Philadelphia International Airport on 1 January 1953. It was initially equipped with the North American F-51 Mustang fighter because of a lack of available jets at the time due to the Korean War. Despite is designation as a fighter bomber wing, its mission was to augment air defense forces. In 1955, it was redesignated the 111th Fighter-Interceptor Group and received Republic F-84F Thunderstreaks. In July 1956, the group was redesignated the 111th Air Defense Wing. The wing's 117th Squadron was inactivated, while its 103rd Squadron switched to Lockheed F-94 Starfires. In April 1958, the wing was inactivated and it 111th Fighter Group (Air Defense) was reassigned to the 108th Air Defense Wing.