With return to state control, the wing assumed the air defense mission. Despite its retention of the fighter bomber designation, it was gained by Air Defense Command (ADC) upon mobilization. ADC required the squadrons it gained to be designed to augment active duty squadrons capable of performing air defense missions for an indefinite period after mobilization independently of their parent wing.See Cantwell, p. 148 for the same mission performed by reserve units. It was not until 1955 that the wing was redesignated the 108th Fighter-Interceptor Wing. The redesignation coincided with the change from long-range North American P-51H Mustang fighter. designed for the invasion of Japan, the P-51H was the last variant of the P-51 Mustang of World War II, but was produced too late to see any wartime combat. Not used in the Korean War due to it not being believed as rugged as its famous "D model" predecessor, the P-51H was used to equip Air National Guard units in the 1950s as an interceptor. In 1955, the Mustangs were retired and the squadron entered the jet age, with the arrival of the North American F-86E Sabre.
