U.S. Air Force Lt. Col. Chris Hammond, the commander and lead pilot of the U.S. Air Force Thunderbirds, speaks to Airmen during a re-enlistment ceremony during the AirPower over Hampton Roads Open House at Langley Air Force Base, Va., April 22, 2016. Fifteen Airmen re-enlisted during the ceremony. (U.S. Air Force photo by Staff Sgt. Teresa J. Cleveland)