GRAND FORKS AIR FORCE BASE, N.D. - The Notables, a special performance team from the United States Air Force Heartland of America Band, were present Sept. 7 to entertain Airmen and their families as part of the 319th Air Refueling Wing?s annual Air Force Ball. The event was extra-special this year as the Air Force celebrates its 60th anniversary. On September 18, 1947, the first Secretary of the Air Force was sworn into office, creating the birth of the greatest air power in history (U.S. Air Force photo/Airman 1st Class Chad Kellum)