Senior Airman Johnathan DeWerdt, an F-15E crew chief assigned to the 4th Aircraft Maintenance Squadron, Seymour Johnson Air Force Base, N.C., prepares to taxi his aircraft for a training mission during Red Flag at Nellis Air Force Base, Nev., Oct. 22. Red Flag is a multi-national exercise providing a realistic environment to practice combat scenarios. The experience gained during the exercise is vital to the survival of pilots in combat. (U.S. Air Force Photo by Senior Airman Larry E. Reid Jr.)