Andersen Air Force Base -- Part of the many Air Force traditions, Airman Leadership School class 11-F, leads attendees in singing the Air Force song during their graduation ceremony at the Sunrise Conference Center here Aug. 11. ALS is one of the many professional military education courses in the Air Force. Airman Leadership school prepares and trains future noncommissioned officers for increased responsibilities. (U.S. Air Force photo by Staff Sgt. Alexandre Montes)