400th Bombardment Group

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400th Bombardment Group
400th Bombardment Group - Emblem.png
Emblem of the 400th Bombardment Group
CountryUnited States
BranchUnited States Army Air Forces
RoleBombardment Training

The 400th Bombardment Group is an inactive United States Air Force unit. It was last assigned to the First Air Force, stationed at Charleston Army Airfield, South Carolina. It was inactivated on 10 April 1944.

The unit was a World War II B-24 Liberator replacement training unit (RTU). Its graduates were then assigned to combat units in overseas theaters worldwide as replacement personnel. Originally a Second Air Force unit, it was reassigned to First Air Force when Second AF began B-29 Superfortress training. Inactivated in 1944 when the need for B-24 aircrews was diminished.



  • Constituted as 400th Bombardment Group (Heavy) on 15 February 1943
Activated on 1 March 1943
Disbanded on 10 April 1944






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

  • Maurer, Maurer (1983). Air Force Combat Units Of World War II. Maxwell AFB, Alabama: Office of Air Force History. ISBN 0-89201-092-4.

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