United States Army Air Forces
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Categories: Military units and formations established in 1941 | 1947 disestablishments | Military history of the United States 1900-1999 | United States Army Air Forces | Defunct World War II USAAF Fields | Military units and formations of the United States in World War II
The United States Army Air Forces (USAAF) was the aviation component of the United States Army between 1941 and 1947. It was the direct precursor to the U.S. Air Force. The Army Air Forces replaced the Army Air Corps as the name of the service in June 1941 when the Army reorganized into three major components in anticipation of U.S. entry into World War II. Although some other countries already had separate air forces independent of the army or navy (such as the Royal Air Force), the USAAF remained an autonomous part of the Army, co-equal to the Army Ground Forces and Army Service Forces.
HistoryLineage of the United States Air Force
** The Air Corps became a subordinate element of the Army Air Forces on 20 June 1941, and it continued to exist as a combat arm of the Army (similar to Infantry) until disestablished by Congress with the creation of the U.S. Air Force in 1947. Origins of the air armThe USAAF had its roots in a turn-of-the century effort at technology assessment of the progress of aviation. The issuance of a patent to the Wright Brothers in 1906, and the interest of President Theodore Roosevelt brought about the creation on August 1, 1907, of the Aeronautical Division of the Signal Corps, headed by Captain Charles deForest Chandler, established to develop all forms of flying. In 1908, the corps ordered a dirigible balloon and contracted with the Wrights for an airplane. Despite a crash that destroyed the first model, the Wright plane was delivered in 1909. The inventors then began to teach a few enthusiastic young officers to fly. The progress of U.S. military aviation was slow in its early years. Congress voted the first appropriation for military aviation in 1911 and expanded the service into an Aviation Section in 1914. A provisional squadron was formed to support the Punitive Expedition under General John J. Pershing on the Mexican border in 1916 but failed, largely because of poor equipment unsuited to the harsh expeditionary conditions and bad maintenance. The importance of military aviation was established with its role in Europe during World War I. At the time of America's declaration of war against Germany on April 6, 1917, the Aviation Section was marginal at best. France asked the United States to provide an air force of 4,500 airplanes and 50,000 men, and with more enthusiasm than wisdom, Secretary of War Newton D. Baker asked for and received $640 million from Congress for aviation. The result was chaos. By May of 1918, it was clear that the Signal Corps was overtasked in the aviation mission. The War Department then set up an Air Service consisting, at first, of two agencies reporting directly to the Secretary of War: one under a civilian, to deal with the manufacturers, and one under a military officer, to train and organize units. In August President Woodrow Wilson appointed John D. Ryan, Second Assistant Secretary of War, to consolidate the whole under the aegis of the Air Service. As a result of the important role air power had played in the war, a movement developed during the 1920s and 1930s to create an independent air force. The model for this was the Royal Air Force in Great Britain, which early in 1918 had combined its Army and Navy air arms into the RAF. However the U.S. Army's leaders viewed the airplane merely as a weapon for supporting infantry, and gave the Air Service a branch status comparable to that of the field artillery, responsible for procuring equipment and training units. Local ground forces commanders, none of them aviators, directed the aviation units. A series of boards and commissions studied and restudied the question of air organization, with no result other than approval of the name change to the U.S. Army Air Corps in mid-1926. The Air Corps Act of 1926 changed the name of the Air Service to the Air Corps, "thereby strengthening the conception of military aviation as an offensive, striking arm rather than an auxiliary service," and created an additional Assistant Secretary of War to help foster military aeronautics. Other provisions required that all flying units be commanded by rated personnel and that flight pay be continued, but the position of the air arm within the Department of War remained essentially the same as before. Perhaps the most promising aspect of the act for the Air Corps was the authorization to carry out a five-year expansion program, though inadequate funding limited growth to organizational changes and aircraft development. The formulation of theories of strategic bombing (long-range bombardment intended to destroy an enemy nation's war-making potential) at the Air Corps Tactical School gave new impetus to arguments for an independent air force. Despite the perception of Army General Staff resistance and even obstruction, much of which was attributable to lack of funds, the Air Corps made great strides in the 1930's. The strategy stressing precision bombing of industrial targets by heavily armed, long-range aircraft began to emerge. Along with this development, the Air Corps was given the task of coastal defense. The next major step toward a separate air force occurred in March 1935. This began with the centralization of all combat air units within the United States under a single command called General Headquarters Air Force. GHQ Air Force took control of aviation operations from Air Corps area commanders, which had controlled them since 1920. It organized them administratively into four geographical districts headquartered in Los Angeles, Seattle, New York, and Tampa. It then created a strike force of three wings. GHQ Air Force was small in comparison to European air forces. Lines of authority were difficult, at best, since GHQ Air Force controlled only its combat units while the Air Corps was still responsible for all support functions. The Air Corps area commanders, themselves, were still in charge of all airfields and the support personnel manning them. The commanders of GHQ Air Force and the Air Corps, Major generals Frank Andrews and Oscar Westover respectively, clashed philosophically over the direction in which the air arm was taking which added to the difficulties. Creation and expansion of the Army Air ForcesThe likelihood of U.S. participation in World War II prompted the most radical reorganization of the aviation branch in its history, developing a structure that gave it total autonomy by March 1942. On June 20, 1941, under a revision by the United States Department of War of Army Regulation 95-5, Major General Henry H. Arnold, then Chief of the Air Corps, assumed the title of Chief of Army Air Forces, creating an echelon of command over all military aviation components. The AAF was directly under the orders of the Chief of Staff of the Army, General George C. Marshall. Arnold and Marshall agreed that the AAF would enjoy autonomy within the War Department until the end of the war, while its commanders would cease lobbying for independence. Marshall, a strong proponent of airpower, left understood that the Air Force would likely achieve its independence after the war. Soon after the Japanese attack on Pearl Harbor on December 7, 1941, in recognition of importance of the role of the Army Air Forces, Arnold was given a seat on the Joint Chiefs of Staff, the planning staff that served as the focal point of American strategic planning during the war, so that the United States would have an air representative in staff talks with their British counterparts on the Combined Chiefs, and in effect gained equality with Marshall. While this step was never officially recognized by the United States Navy, and was bitterly disputed behind the scenes at every opportunity, it nevertheless succeeded as a pragmatic foundation for the future separation of the Air Force. GHQ Air Force was replaced by the Air Force Combat Command, and its four geographical districts were converted in January 1941 into numbered air forces, with a subordinate organization of 54 groups. Organizationally, the Army Air Forces was created as a higher command echelon encompassing both Air Force Combat Command and the Army Air Corps, thus bringing all of the air arm under a centralized command for the first time. Yet these reforms were only temporary, lasting just nine months as the air arm streamlined in preparation for war, with a goal of centralized planning and decentralized execution of operations. Executive Order 9082 [1] changed Arnold's title to "Commanding General, Army Air Forces" on March 9, 1942, making him co-equal with the commanding generals of the new Army Ground Forces and Services of Supply, the other two parts of the Army of the United States. War Department Circular No. 59 reorganized the Army Air Forces, disbanding the Combat Command (formerly GHQAF) and changing the Air Corps to a non-organizational combat arm, eliminating their layer of command. Replacing them were eleven numbered air forces (later raised to sixteen) and six major commands (which became eight in January 1943: Flying Training, Technical Training, Troop Carrier, Air Transport, Materiel, Air Service, Proving Ground, and Anti-Submarine Commands). In July 1943 Flying Training and Technical Training Commands merged into a single Training Command. As a result of its exponential growth during World War II, the Army Air Forces became the world's largest and most powerful air force. The expansion from the Air Corps of 1939, with 20,000 men and 2,320 planes (a limit set in 1934), to the autonomous AAF of 1944, with almost 2.4 million personnel and 80,000 aircraft, was a remarkable feat. Robert A. Lovett, the Assistant Secretary of War for Air, together with Arnold, presided over an increase of personnel and equipment greater than for either the ground Army or the Navy, while at the same time dispatching combat air forces to theaters of war all over the globe. The sixteen air forces
By the end of World War II, the USAAF had created sixteen numbered air forces (First through Fifteenth and Twentieth) distributed world-wide to prosecute the war and defend the Americas, plus a Zone of the Interior general air force within the continental United States to support the whole. An additional eight air divisions served as an additional layer of command for the vast organization, capable of acting independently if the need arose. Several of these air forces and divisions grew out of earlier commands—for example, the Eighth Air Force was originally VIII Bomber Command, then later had its designation again assigned to the command when that organization was discontinued——as the service expanded in size and organization, with multiple lower tiers added and higher echelons such as United States Strategic Air Forces (USSTAF) in Europe and U.S. Strategic Air Forces in the Pacific became necessary to control the whole. Several air forces were created de novo as the service expanded during the war. Inclusive within the air forces and divisions were a total of 91 administrative command headquarters called wings, denoted as bombardment, fighter reconnaissance, training or composite as defined by their functional role. Larger support organizations, such as Air Transport Command (successor to the pre-war Air Corps Ferrying Command) remained under the control of Headquarters Army Air Forces, while their operational organizations (wings, groups, and squadrons) were assigned to the numbered air forces. In August 1945, the U.S. Strategic Air Forces became the United States Air Forces in Europe (USAFE). In 1947, USAFE became a component of the newly-created United States Air Force. From 1948–49, the unit was responsible for the Berlin Airlift. 
While officially the air arm had become the Army Air Forces, colloquially the term Air Corps persisted among the public as well as veteran airmen, whose branch remained the Air Corps; in addition, the singular "Air Force" often crept into popular use, reflected by usage of the term "Air Force Combat Command" in 1941-42. This misnomer crept onto official recruiting posters (see image on right) and was important in promoting the idea of an "Air Force" as an independent service. List of numbered air forces, area of responsibility and basing
GroupsThe basic combat component of the Army Air Forces was the group, an organization of three or four flying squadrons and attached or organic ground support elements, and the rough equivalent of a regiment in the Army Ground Forces. The Army Air Forces fielded a peak of 269 combat groups during World War II, and an operational peak in 1945 of 243 groups. At the end of 1940 the Air Corps had expanded from 15 to 30 groups. By the time the United States entered World War II, the number had increased to 67, but half were in the process of being organized and were unsuitable for combat. Of the 67 groups, 26 were bombardment: 13 Heavy Bomb groups (B-17 and B-24), and the rest Medium and Light groups (B-25, B-26, and A-20). 26 were Pursuit groups (renamed "Fighter groups" in May 1942), 9 Observation (renamed "Reconnaissance") groups, and 6 Transport (renamed "Troop Carrier" or "Combat Cargo") groups. The Army Air Forces expanded rapidly in the first half of 1942 and by the beginning of 1944 there were 269 groups. 136 were deployed overseas, and of the remainder still in the United States, 77 were being organized and trained for overseas deployment. The other 56 served as defense units, as Operational Training Units (OTUs) preparing new units for combat, and as Replacement Training Units (RTUs) to train personnel replacements. Early in 1944, all training was assigned to base units and the OTUs and RTUs inactivated, reducing the number of groups to 218. However, with the formation and deployment of the remaining 25 new groups, the USAAF grew to its final form and at the time of the invasion of France in June 1944, 148 combat groups were fighting against Germany. By August 1945, when all combat operations ended, 86 groups were deployed in the Pacific and Far East, and the remaining force was either in occupation duties in Europe or re-deploying to the United States. After the operational deployment of the B-29 bomber, Very Heavy Bombardment units became part of the force structure. In February 1945, in its final organizational structure, the USAAF fielded 243 combat groups:
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