A U.S. Air Force F-16CM Fighting Falcon taxis on the flight line at Langley Air Force Base, Va., following a 95th Anniversary Maj. Gen. William “Billy” Mitchell memorial reenactment, July 22, 2016. The reenactment memorialized the 1921 airpower trials at Langley Field led by Mitchell, an early aviation visionary and outspoken advocate of American air power. (U.S. Air Force photo by Staff Sgt. R. Alex Durbin)