The 399th Bombardment Group, USAAF, was a training unit that was based in the United States from its formation in 1943 until it was disbanded in 1944.
The group was activated on 1 March 1943 and was assigned to the Second Air Force, first in Arizona, then Idaho and finally Utah. At first it was an Operational Training Unit, preparing larger groups of aircrews for action, but in August 1943 it became a replacement training unit, preparing individual crews to join existing combat units.
In December 1943 the group was moved to the Fourth Air Force and to California where it remained until it was disbanded on 31 March 1944.
1943-1944: Consolidated B-24 Liberator
|15 February 1943||Constituted as 399th Bombardment Group (Heavy)|
|1 March 1943||Activated and assigned to Second Air Force|
|December 1943||To Fourth Air Force|
|31 March 1944||Disbanded|
Lt Col Luther J Fairbanks:
Lt Col James H Isbell: 1 Oct 1943
Lt Col John E Dougherty: 11 Nov 1943
Lt Col Eugene T Yarbrough: 15 Feb-31 Mar 1944.
Davis-Monthan Field, Ariz: 1 Mar 1943
Gowen Field, Idaho: 10 Apr 1943
Wendover Field, Utah: 27 Apr 1943
March Field, Calif: 3 Dec 1943-31 Mar 1944.
604th Bombardment Squadron: 1943-1944.
605th Bombardment Squadron: 1943-1944.
606th Bombardment Squadron: 1943-1944.
607th Bombardment Squadron: 1943-1944
March-December 1943: Second Air Force
December 1943-March 1944: Fourth Air Force