On August 1, 1907, the U.S. Army Signal Corps formed an Aeronautical Division. This action came only three-and-a-half years after the Wright brothers flew the world's first powered airplane at Kitty Hawk, North Carolina. The Aeronautical Division accepted delivery of its first airplane from the Wright brothers in 1909. A brave band of early Army Airmen experimented with various aircraft and formed an operational unit, the 1st Aero Squadron, in December 1913.
After September 1939, when Adolf Hitler launched World War II by invading Poland, the Air Corps began a steady growth from 26,000 personnel and fewer than 2,000 planes. On June 20, 1941, the Department of War created the Army Air Forces. By the last year of the war, the quantity and quality of elite AAF units dominated the skies over both Germany and Japan. Based on the AAF's wartime achievements and future potential, the U.S. Air Force won its independence as a full partner with the Army and the Navy on September 18, 1947.
U.S. Air Force Tartan
The U.S. Air Force Tartan is not official, but still widly recognized and worn by U.S. Air Force families all around the world.