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25th Air Division
Emblem of the 25th Air Division
Active 1948–1990
Country United States
Branch United States Air Force
Role Command and Control
Part of Tactical Air Command (ADTAC)

25th Air Division ADC AOR 1948-1959

25th Air Division ADC/TAC/NORAD Region AOR 1966-1979

25th Air Division/Northwest Air Defense Sector AOR, 1987-1990

The 25th Air Division is an inactive United States Air Force intermediate echelon command and control organization. It was last assigned to First Air Force, Tactical Air Command (ADTAC). It was inactivated on 30 September 1990 at McChord Air Force Base, Washington.

History[edit | edit source]

The command was activated on 25 October 1948, being the first Air Division for air defense. Its headquarters was at Silver Lake, near Everett, Washington under Continental Air Forces (ConAC). The 25th AD did not assume any command responsibilities until 1949 when it became an intermediate level command under the Air Defense Command, Western Air Defense Force. Its initial Area of Responsibility (AOR) was a large area of the northwest Continental United States, from the 103rd meridian west and north of the 42nd parallel north. This encompassed an area consisting of the states of Washington, Oregon, Idaho, Montana and Wyoming and the western parts of North and South Dakota as well as Nebraska.

During the 1950s the AOR of the 25th AD changed frequently, but its core area always included the area of Washington State west of the Cascade Mountains. On 1 January 1951, Air Defense Command regained major command status, and the 25th AD was one of four Air Divisions assigned to the new command. Later that year, on 15 September HQ 25th AD was moved from Silver Lake AFS to McChord AFB, near Tacoma, Washington. Beginning on 1 January 1958, it the command organization for the Seattle Air Defense Sector Semi Automatic Ground Environment (SAGE) Data Center (DC-12) at McChord AFB. A few months later, on 1 September, the Portland Air Defense Sector, with its SAGE Direction Center (DC-13) at Adair AFS, Oregon also came under the 25th AD; on 8 September the Spokane Air Defense Sector and DC-15 at Larson AFB toned the 25th AD. In 1959, the Reno Air Defense Sector and DC-16 at Stead AFB, Nevada was also incorporated. During the Cold War era, the 25th AD equipped, administered, trained and provided air defense combat ready forces within the northwestern United States. It exercised command jurisdiction over assigned units, installations, and facilities and provided and maintained facilities for the Air Division control center. In addition, the division and its subordinate units also participated in numerous tactical air defense training exercises. In the late 1950s, the Division also controlled United States-built radar stations in Western Canada as part of the Pinetree Line. These stations were turned over to the Royal Canadian Air Force in the early 1960s.

In May 1960, SAGE Combat Center Number 3 (CC-03) became operational at McChord AFB, bringing these separate Direction Centers under a unified center under the 25th AD. In July, DC-16 at Stead AFB was reassigned to the 28th Air Division at Hamilton AFB, California and the inactivation of the Western Air Defense Force brought the 25th AD directly under the control of Air Defense Command. In 1966 it was assigned to Headquarters, Fourth Air Force at Hamilton AFB, although it remained stationed at McChord AFB. It also replaced the Seattle Air Defense Sector in 1966. Assumed additional designation of 25th NORAD Region after activation of the NORAD Combat Operations Center at Cheyenne Mountain, Colorado and reporting was transferred to NORAD from ADC at Ent AFB in April 1966.

The division was a major part of Air Defense Command, and later Aerospace Defense Command (ADCOM) in 1968. In 1979 it was incorporated into Tactical Air Command with the inactivation of ADCOM as a major command. Under Air Defense, Tactical Air Command (ADTAC). In 1985 most active-duty units of ADCOM were inactivated or reassigned to other missions, and the air defense mission came under Air Force Reserve and Air National Guard units under First Air Force. It continued its mission until 1990, when the 25 AD was inactivated, its mission and components becoming part of the First Air Force Northwest Air Defense Sector.

Lineage[edit | edit source]

  • Established as 25 Air Defense Division on 27 September 1948.
Activated on 25 October 1948
Re-designated 25 Air Division (Defense) on 20 June 1949.
Inactivated on 1 February 1952
  • Organized on 1 February 1952
Re-designated: 25th Air Division (SAGE) on 1 March 1959
Re-designated :25th Air Division on 1 April 1966
Organized 1 April 1966, replacing Seattle Air Defense Sector
Assumed additional designations 25th NORAD/CONRAD Region, 1 April 1966
Assumed additional designation 25th ADCOM Region, 8 December 1978
Inactivated on 30 September 1990, assets transferred to Northwest Air Defense Sector.

Assignments[edit | edit source]

Attached to Western Air Defense Force, 10 November 1949 – 1 August 1950

Stations[edit | edit source]

Components[edit | edit source]

Sectors[edit | edit source]

March AFB, California
McChord AFB, Washington

Adair AFS, Oregon
Stead AFB, Nevada

McChord AFB, Washington
Larson AFB, Washington

Wings[edit | edit source]

McChord AFB, Washington
Geiger Field, Washington

Hamilton AFB, California
Geiger Field, Washington
McChord AFB, Washington

Groups[edit | edit source]

Paine Field, Washington, 1 April 1966 – 30 September 1968
Geiger Field, Washington, 15 August-1 September 1958
McChord AFB, Washington, 18 August-18 October 1956
Paine Field, Washington, 18 August 1955 – 10 February 1960
Portland Airport, Washington, 18 August 1955 – 15 April 1960
Kingsley Field, Oregon, 1 March 1959 – 15 April 1960; 15 September 1969 – 1 October 1970
  • 162d Aircraft Control and Warning Group (Federalzed ANG)
Larson AFB, Washington, 25 June 1951 – 6 February 1952

  • 503d Air Defense Group
Portland Airport, Washington, 8 October 1954
Re-designated 337th Fighter Group (Air Defense), 18 August 1955 – 15 April 1960
Silver Lake AWS, Washington, 21 May 1947
McChord AFB, Washington, 15 August 1951 – 6 February 1952
  • 529th Air Defense Group
Paine Field, Washington, 8 October 1954
Re-designated 326th Fighter Group (Air Defense), 18 August 1955 – 10 February 1960
  • 567th Air Defense Group
McChord AFB, Washington, 8 October 1954
Re-designated 78th Fighter Group
Reassigned to Hamilton AFB (Air Defense), California, 18 August 1955 – 1 July 1960
Larson AFB, Washington, 15 August-1 September 1968

Squadrons[edit | edit source]

Interceptor[edit | edit source]
Minot AFB, North Dakota, 1 June 1983 – 1 December 1987
Larson AFB, Washington, 26 November 1952 – 18 August 1955
Grand Forks AFB, North Dakota, 1 April 1971 – 30 July 1974
Radar[edit | edit source]

Burns AFS, Oregon, 20 June 1953 – 1 October 1954; 15 August 1958 – 1 September 1958; 15 September 1969 – 30 September 1970
Fort Lawton AFS, Washington, 6 February 1952 – 1 January 1953; 1 January 1953 – 1 January 1953
Condon AFS, Washington, 6 February 1952 – 1 January 1953; 15 August-1 September 1958; 15 September 1969 – 30 September 1970
Othello AFS, Washington, 6 February 1952 – 1 January 1953; 15 August-1 September 1958; 1 April 1966 – 31 March 1975
Curlew AFS, Washington, 6 February 1952 – 1 January 1953; 15 August- 1 September 1958
Yaak AFS, Montana, 15 August-1 September 1958; 15 May-1 July 1960
Mount Hebo AFS, Oregon, 8 October 1954 – 1 March 1960; 1 April 1966 – 30 June 1979
Kalispell AFS, Montana, 19 November 1969 – 1 April 1978
Blaine AFS, Washington, 6 February 1952 – 1 January 1953; 8 October 1954 – 1 March 1960; 1 April 1966 – 1 January 1979
Makah AFS, Washington, 6 February 1952 – 1 January 1953; 8 October 1954 – 1 March 1960; 1 April 1966 – 30 June 1982
Naselle AFS, Washington, 6 February 1952 – 1 January 1953; 8 October 1954 – 1 March 1960; 1 April-25 June 1966

Colville AFS, Washington, 6 February 1952 – 1 January 1953; 15 August-1 September 1958
North Bend AFS, Oregon, 6 February 1952 – 1 January 1953; 8 October 1954 – 1 March 1960; 15 September 1969 – 11 February 1980
Klamath AFS, California, 1 March 1959 – 1 March 1960; 15 September 1969 – 30 September 1981
Geiger Field, Washington, 15 August-1 September 1958
Baker AFS, Oregon, 15 May-1 July 1960
Cottonwood AFS, Idaho, 15 August-1 September 1958
Mica Peak AFS, Washington, 15 August-1 September 1958; 1 April 1966 – 1 June 1975
Kamloops AS, British Columbia, 1 September 1957 – 15 March 1960
Keno AFS, Oregon, 1 March 1959 – 1 March 1960; 1 March 1970 – 1 October 1979
Red Bluff AFS, California, 1 March 1959 – 1 March 1960
Puntzi Mountain AS, British Columbia, 1 January 1953 – 1 March 1960
Baldy Hughes AS, British Columbia, 16 February 1953 – 1 March 1960
Saskatoon Mountain AS, Alberta, 16 February 1953 – 15 March 1960

See also[edit | edit source]

References[edit | edit source]

 This article incorporates public domain material from the Air Force Historical Research Agency website http://www.afhra.af.mil/.

  • A Handbook of Aerospace Defense Organization 1946 - 1980, by Lloyd H. Cornett and Mildred W. Johnson, Office of History, Aerospace Defense Center, Peterson Air Force Base, Colorado
  • Winkler, David F. (1997), Searching the skies: the legacy of the United States Cold War defense radar program. Prepared for United States Air Force Headquarters Air Combat Command.
  • Aerospace Defense Command publication, The Interceptor, January 1979 (Volume 21, Number 1)
  • Air Force Historical Research Agency: 25th Air Division

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