United States Air Force
The U.S. War Department created the first antecedent of the U.S. Air Force, as a part of the U.S. Army, on 1 August 1907, which through a succession of changes of organization, titles, and missions advanced toward eventual independence 40 years later. In World War II, almost 68,000 U.S. airmen died helping to win the war, with only the infantry suffering more casualties. In practice, the U.S. Army Air Forces (USAAF) was virtually independent of the Army during World War II, and in virtually all ways functioned as an independent service branch, but airmen still pressed for formal independence. The National Security Act of 1947 was signed on 26 July 1947 by President Harry S Truman, which established the Department of the Air Force, but it was not until 18 September 1947, when the first secretary of the Air Force, W. Stuart Symington, was sworn into office that the Air Force was officially formed as an independent service branch.
Eighth Air Force
Established on 22 February 1944 by the redesignation of VIII Bomber Command at RAF Daws Hill in High Wycombe, England, the Eighth Army Air Force (8 AAF) was a United States Army Air Forces combat air force in the European Theater of World War II (1939/41–1945), engaging in operations primarily in the Northern Europe AOR; carrying out strategic bombing of enemy targets in France, the low countries, and Germany; and engaging in air-to-air fighter combat against enemy aircraft until the German capitulation in May 1945. It was the largest of the deployed combat Army Air Forces in numbers of personnel, aircraft, and equipment.