The 4704th Defense Wing is a discontinued United States Air Force organization. Its last assignment was with the 25th Air Division of Air Defense Command (ADC) at McChord Air Force Base, Washington, where it was discontinued in 1954. It was established in 1952 at McChord in a general reorganization of ADC, which replaced wings responsible for a base with wings responsible for a geographical area. It commanded three fighter interceptor squadrons initially, and added three more squadrons before the end of the year. In early 1953 it added several radar squadrons in the Pacific Northwest, one of which was an Air National Guard squadron mobilized for the Korean War. When it was discontinued in the fall of 1954 its units transferred to the 25th Air Division.
The Spokane Air Defense Sector (SPADS) is an inactive United States Air Force organization. Its last assignment was with the Air Defense Command 25th Air Division at Larson Air Force Base in Grant County, Washington
The 4732nd Air Defense Group is a discontinued United States Air Force organization. Its last assignment was with the 64th Air Division of Air Defense Command at Goose Air Force Base, Newfoundland, Canada, where it was discontinued in 1960. The group was formed in 1957 when ADC assumed responsibility for air defense of Newfoundland and Northern Canada from Northeast Air Command and controlled a fighter-interceptor squadron at Harmon and seven squadrons operating radars at dispersed locations. It was discontinued when Goose Air Defense Sector assumed responsibility for air defense of Newfoundland and Northern Canada.
The 4731st Air Defense Group is a discontinued United States Air Force organization. Its last assignment was with the 64th Air Division of Air Defense Command (ADC) at Ernest Harmon Air Force Base, Newfoundland, Canada, where it was inactivated in 1960. The group was formed in 1957 when ADC assumed responsibility for air defense of Newfoundland from Northeast Air Command and controlled a fighter-interceptor squadron at Harmon and two squadron operating radars at dispersed locations. It was discontinued when Goose Air Defense Sector assumed responsibility for air defense of Newfoundland.
The 4734th Air Defense Group is a discontinued United States Air Force organization. Its last assignment was with the 64th Air Division (AD) at Thule Air Base, Greenland, where it was discontinued in 1958. The group was formed in 1957 when ADC assumed responsibility for air defense of Greenland from Northeast Air Command. It controlled a fighter-interceptor squadron at Thule and a squadron operating a radar at nearby Pingarsuak Mountain. It was discontinued in 1958 and its mission transferred to the 64th AD in Newfoundland.
The 4733d Air Defense Group is a discontinued United States Air Force organization. Its last assignment was with the 64th Air Division at Frobisher Bay, Baffin Island, Northwest Territories, Canada, where it was discontinued in 1958. The group was formed in 1957 when ADC assumed responsibility for air defense of Northern Canada from Northeast Air Command, including support for remote Distant Early Warning Line radar sites. It also controlled two squadrons operating radars at dispersed locations. It was discontinued in 1958 and its DEW Line support mission transferred to the 4601st Support Group and its radar squadrons to the 4732d Air Defense Group in Newfoundland.
The 4683d Air Defense Wing is a discontinued United States Air Force (USAF) organization. Its last assignment was with Aerospace Defense Command (ADC)'s Goose Air Defense Sector at Thule Air Base, Greenland, where it was discontinued in 1965.
Osceola Air Force Station is a closed United States Air Force General Surveillance Radar station. It is located 5.6 miles (9.0 km) south-southeast of Osceola, Wisconsin. It was closed in 1975.
The 793d Radar Squadron is an inactive United States Air Force unit. It was last assigned to the 30th Air Division, Aerospace Defense Command, stationed at Hutchinson Air Force Station, Kansas. It was inactivated on 8 September 1968.
The 776th Radar Squadron is an inactive United States Air Force unit. It was last assigned to the Northeast Air Defense Sector, Air Combat Command, stationed at Bangor Air National Guard Base, Maine, where it was inactivated on 6 September 1991.
Condon Air Force Station is a closed United States Air Force General Surveillance Radar station. It is located 5.7 miles (9.2 km) west of Condon, Oregon. It was closed in 1970.
The 637th Radar Squadron is an inactive United States Air Force unit. It was last assigned to the 25th Air Division, Aerospace Defense Command, stationed at Othello Air Force Station, Washington.
The 543d Aircraft Control and Warning Group is a disbanded United States Air Force unit. It was last assigned to the 31st Air Division, Air Defense Command, stationed at Fort Snelling, Minnesota. It was inactivated on 10 February 1952.
The 503d Aircraft Control and Warning Group (AC&WG) is an inactive United States Air Force unit. Its last assignment was with Air Defense Command (ADC)'s 26th Air Division at Roslyn AFS New York. It was inactivated in 1952.
The 542d Aircraft Control and Warning Group is an inactive United States Air Force unit. It was last assigned to the 28th Air Division, stationed at Hamilton Air Force Base, California. It was inactivated on 6 February 1952.
The 540th Aircraft Control and Warning Group is an inactive United States Air Force unit. It was assigned to the 32d Air Division, stationed at Stewart Air Force Base, New York. It was inactivated on 6 February 1952.
The 546th Aircraft Control and Warning Group is an inactive United States Air Force unit. It was assigned to the 33d Air Division, stationed at Tinker Air Force Base, Oklahoma. It was inactivated on June 4,1951.
The 541st Aircraft Control and Warning Group (AC&WG) is a disbanded United States Air Force unit. It was last assigned to the 30th Air Division, stationed at Selfridge Air Force Base, Michigan. It was inactivated on 6 February 1952 and disbanded on 21 September 1984.
The 544th Aircraft Control and Warning Group is an inactive United States Air Force unit. It was assigned to the 27th Air Division, and last stationed at Norton Air Force Base, California. It was inactivated on 6 February 1952.
Elliston Ridge Air Station was a General Surveillance Gap Filler Radar station in the Canadian province of Newfoundland and Labrador, It was located 74 miles (119 km) north-northwest of St. John's. It was closed in 1961.
United States Air Force 
