Airman 1st Class James Douds, a fuels specialist with the 386th Expeditionary Logistics Readiness Squadron, tests the emergency shut off system for a R11 refueling unit while filling the truck, at an undisclosed location in Southwest Asia, Sept. 10, 2017. Fuels management Airmen work around-the-clock supplying approximately 150,000 gallons a day of jet fuel to outbound aircraft in support of the Combined Joint Task Force – Operation Inherent Resolve mission. (U.S. Air Force photo by Tech. Sgt. Jonathan Hehnly)