U.S. Army Master Sgt. Chris Parker, an aviation operator assigned to U.S. Army Golden Knights parachute team, marks the landing zone for a member of the Golden Knights during the Airpower Over Hampton Roads Open House at Langley Air Force Base, Va., April 24, 2016. The Golden Knights are one 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 Staff Sgt. J.D. Strong II)