U.S. Air Force CHIEF MASTER SGT. Mike Cannon (left), from Headquarters Pacific Air Force (PACAF), Hickam Air Force Base, Hawaii, observes as STAFF SGT. Jason Phillips (right), from the 123rd Fighter Squadron, Oregon Air National Guard, prepares his F-15C Eagle aircraft during the timed weapons load portion of exercise William Tell 2004 at Tyndall Air Force Base, Fla., on Nov. 8, 2004. This is the 50th Anniversary of the William Tell competition, an exercise that tests an aircrew's ability to perform under combat conditions. (USAF PHOTO by STAFF SGT. Dennis J. Henry Jr.) (Released)