The 400th Bombardment Group was a home based training unit that was active from March 1943 until April 1944.
The group was activated on 1 March 1943. It was equipped with the B-24 Liberator and joined the Second Air Force, where it served as an operational training unit.
In December 1943 the group moved to the First Air Force, where it became a replacement training unit, helping to fill gaps in existing combat units. This was a short-lived assignment as the group was disbanded on 10 April 1944.
1943-44: Consolidated B-24 Liberator
|15 February 1943||Constituted as 400th Bombardment Group (Heavy)|
|1 March 1943||Activated and assigned to Second Air Force|
|December 1943||To First Air Force|
|10 April 1944||Inactivated|
Lt Col John A Way: c. March 1943-April 1944
Pyote AAB, Tex: 1 Mar 1943
Davis-Monthan Field, Ariz: Apr 1943
Pueblo AAB, Colo: c. 2 May 1943
Salina, Kan: 31 Jul 1943
Alamogordo AAFld, NM: 19 Sep 1943
Charleston AAFld, SC: 15 Dec 1943-10 Apr 1944.
608th Bombardment Squadron: 1943-1944.
609th Bombardment Squadron: 1943-1944.
610th Bombardment Squadron: 1943-1944.
611th Bombardment Squadron: 1943-1944
February-December 1943: Second Air Force
December 1943-April 1944: First Air Force