Ted Gillenwater, 455th Expeditionary Logistics Readiness Squadron fuels management section, checks the gauges on an R-12 hydrant servicing vehicle during a refueling operation at Bagram Airfield, Afghanistan, Aug. 3, 2017. The fuels management team is mostly comprised of contractors who have served in fuels before while in the military. Gillenwater served in the U.S. Air Force for six years as a fuels management specialist. (U.S. Air Force photo by Staff Sgt. Benjamin Gonsier)