Staff Sgt. John Linfoot performs a post flight inspection on a F-16 Fighting Falcon during Maple Flag 41 at Cold Lake, Canada. Maple Flag is a four-week international air combat exercise held annually at 4 Wing Cold Lake, Alberta. The exercise provides Canadian and allied aircrews with realistic training in a modern simulated air combat environment, and it emphasizes air operations, involving large package coalition forces. Sergeant Linfoot is an F-16 crew chief from the 64th Aggressor Squadron, Nellis Air Force Base, Nev. (U.S. Air Force photo/Master Sgt. Cecilio Ricardo)