Example image of eyePlorer eyePlorer map for 'Army Service Forces': Army Ground Forces Army of the United States United States Army Air Forces World War II 1942 February 28 March 2 Chief of Staff of the United States Army 1943 March 12 Services of Supply Corps area Chemical Corps Medical Corps (United States Army) Ordnance Corps (United States Army) Quartermaster Corps (United States Army) Signal Corps (United States Army) United States Army Corps of Engineers Transportation Corps (United States Army) July 31 United States Secretary of War Brehon B. Somervell Camp Ellis 2d Air Commando Group 353d Fighter Group 356th Fighter Group 359th Fighter Group 364th Fighter Group 365th Fighter Group 371st Fighter Group 391st Bombardment Group 493d Bombardment Group Structure of the United States Army USAT General Brehon B. Somervell 50th Air Division 397th Bombardment Wing 64th Air Division 65th Air Division 96th Air Division List of major U.S. Commands of World War II 1st Fighter Squadron (Commando) 332d Fighter Group 345th Bombardment Wing 42d Air Division 91st Air Division 14th Air Division 26th Tactical Reconnaissance Wing 316th Air Division 385th Strategic Aerospace Wing 453d Operations Group