211018-F-GM429-0650
Master Sgt. Cal Codeiro, 203d Airlift Squadron, boom operator, refuels a C-17 Globemaster III during a refueling exercise in the airspace around Hawaii, October 18, 2021. The boom operator is stationed in the rear of the fuselage operating a boom to refuel aircraft in flight. (U.S. Air Force photo by Airman 1st Class Makensie Cooper)