U.S. Air Force Staff Sgt. Zachary Smith, 51st Logistics Readiness Squadron fuels distribution supervisor samples fuel from an R-11 refueler truck during morning checkpoint inspections at Osan Air Base, Republic of Korea, Dec. 1, 2022. Smith performed a visual test to ensure the truck's filtering system was fully operational before fuels Airmen began their distribution runs. (U.S. Air Force photo by Staff Sgt. Dwane R. Young)