Refueling the refuelers
Staff Sgt. Mallory Cook, 908th Expeditionary Air Refueling Squadron KC-10 Extender boom operator, refuels another KC-10 Aug. 6, 2019. Cook offloaded 106,000 pounds of fuel to the KC-10, allowing the other aircrew to bring more fuel to the fight. (U.S. Air Force photo by Staff Sgt. Chris Thornbury)