U.S. Air Force Birthday -1947

The United States Air Force’s 77th birthday will be on September 18, 2024. The day commemorates the establishment of the Air Force as a separate branch of the military on September 18, 1947. President Truman signed the National Security Act of 1947, which created the Department of Defense and established the Air Force as an independent service. The Air Force birthday recognizes the Air Force’s role in national security and defense, including air and space superiority, global strike, rapid global mobility, intelligence, surveillance, and reconnaissance.