The jet wash from an F/A-18 Hornet from Marine Corps Air Station Miramar, California, blurs the view of an F-16 assigned to the Texas Air National Guard's 149th Fighter Wing. The two units participated in a joint training exercise at Kelly Field, Lackland Air Force Base, Texas, December 3, 2010. (U.S. Air Force photo/Staff Sgt. Eric L. Wilson)