The United States Air Force birthday is an annual observance that commemorates the establishment of the U.S. Air Force as a separate branch of the U.S. military on September 18, 1947. This day recognizes the vital role played by the Air Force in national security and defense, including air and space superiority, global strike, rapid global mobility, intelligence, surveillance, and reconnaissance. The Air Force has a long and distinguished history, with its members serving bravely in every major conflict since World War II. The U.S. Air Force Birthday is an opportunity to pay tribute to the brave men and women who have served in this branch of the military, as well as to honor their dedication, sacrifice, and commitment to protecting the nation’s airspace and global interests.