| 31st Air Division | |
|---|---|
| Active | 1950–1960; 1966–1969 |
| Country | United States |
| Branch | |
| Role | Command ofair defense forces |
| Part of | Air Defense Command |
| Insignia | |
| 31st Air Division emblem(Approved 19 March 1954)[2] | |
The31st Air Division (31st AD) is an inactiveUnited States Air Force organization. Its last assignment was withAir Defense Command, assigned toTenth Air Force, being stationed atSioux City Municipal Airport, Iowa. It was inactivated on 31 December 1969.

Assigned toAir Defense Command (ADC) for most of its existence, the division equipped, administered, trained, and provided combat ready forces within an area covering North Dakota, South Dakota, Nebraska, Minnesota, and other parts of the Midwest. The division participated in numerous live and simulated exercises such asCreek Chief,Pawnee Knife, andMandan Hunt.[2]

Later, beginning in 1966, the 31st assumed responsibility for the formerOklahoma City Air Defense Sector and covered an area including Texas, Oklahoma, Arkansas, and Louisiana.[2] Assumed additional designation of31st NORAD Region after activation of the NORAD Combat Operations Center at theCheyenne Mountain Complex, Colorado and reporting was transferred toNORAD from ADC atEnt Air Force Base in April 1966.
Inactivated in December 1969[2] as ADC phased down its interceptor mission as the chances of a Soviet bomber attack on the United States seemed remote, its mission being consolidated intoNorth American Aerospace Defense Command (NORAD).
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This article incorporatespublic domain material from the Air Force Historical Research Agency