TRAVIS AIR FORCE BASE, Calif. -- Following the final flight of his Air Force career, Senior Master Sgt. Christopher Kerr, 312th Airlift Squadron flight engineer, is celebrated by his fellow Reserve Citizen Airmen at Travis Air Force Base, California on May 18, 2021, Kerr was joined by 349th Air Mobility Wing commander, Col. Lee Merkle, who piloted the flight and joined in the celebration which included a water fight. (Photo by Senior Airman Brady Penn)