On 24 May 1946, the United States Army Air Forces, in response to dramatic postwar military budget cuts imposed by President Harry S. Truman, allocated inactive unit designations to the National Guard Bureau for the formation of an Air Force National Guard.
These unit designations were allotted and transferred to various State National Guard bureaus to provide them unit designations to re-establish them as Air National Guard units.

The Wyoming Air National Guard was first organized in a small hangar on the southwest side of Cheyenne Municipal Airport, Wyoming, under Maj.
Robert E. Sedman.
It was extended federal recognition and activated on 11 August 1946 and was equipped with F-51D Mustangs.
18 September 1947, however, is considered the Wyoming Air National Guard's official birth concurrent with the establishment of the United States Air Force as a separate branch of the United States military under the National Security Act.

The 187th Fighter Squadron was activated on 1 April 1951 for service during the Korean War, with personnel assigned to Clovis Air Force Base, New Mexico, West Germany, Okinawa, and South Korea.
In Korea, 18 Wyoming ANG pilots flew 1,500 combat missions.
In 1956 the Wyoming ANG became the 187th Fighter Interceptor Squadron.
Two years later, during 1958, it received its first F-86L Sabre, and was re-designation as the 153rd Fighter Interceptor Group.

The most dramatic change came for the Wyoming unit in 1961 when it changed from a fighter unit to flying Fairchild C-119 Flying Boxcar and airlifting medical patients, with the newly designated 187th Aeromedical Transport Squadron.
On 21 June 1963 it received the Lockheed C-121 Constellation aircraft and expanded its military airlift role to worldwide mission capabilities.
On 24 May 1946, the United States Army Air Forces, in response to dramatic postwar military budget cuts imposed by President Harry S. Truman, allocated inactive unit designations to the National Guard Bureau for the formation of an Air Force National Guard. These unit designations were allotted and transferred to various State National Guard bureaus to provide them unit designations to re-establish them as Air National Guard units.
The Wyoming Air National Guard was first organized in a small hangar on the southwest side of Cheyenne Municipal Airport, Wyoming, under Maj. Robert E. Sedman. It was extended federal recognition and activated on 11 August 1946 and was equipped with F-51D Mustangs. 18 September 1947, however, is considered the Wyoming Air National Guard's official birth concurrent with the establishment of the United States Air Force as a separate branch of the United States military under the National Security Act.
The 187th Fighter Squadron was activated on 1 April 1951 for service during the Korean War, with personnel assigned to Clovis Air Force Base, New Mexico, West Germany, Okinawa, and South Korea. In Korea, 18 Wyoming ANG pilots flew 1,500 combat missions. In 1956 the Wyoming ANG became the 187th Fighter Interceptor Squadron. Two years later, during 1958, it received its first F-86L Sabre, and was re-designation as the 153rd Fighter Interceptor Group.
The most dramatic change came for the Wyoming unit in 1961 when it changed from a fighter unit to flying Fairchild C-119 Flying Boxcar and airlifting medical patients, with the newly designated 187th Aeromedical Transport Squadron. On 21 June 1963 it received the Lockheed C-121 Constellation aircraft and expanded its military airlift role to worldwide mission capabilities.
Wyoming Air National Guard