A member of the U.S. Army Golden Knights parachute team presents the American flag to kick off the AirPower over Hampton Roads Open House at Langley Air Force Base, Va., April 23, 2016. The Golden Knights are one of three Department of Defense-sanctioned aerial demonstration teams, along with the U.S. Navy Blue Angels and the U.S. Air Force Thunderbirds. (U.S. Air Force photo by Airman 1st Class Kaylee Dubois)