Pilots from the 340th Expeditionary Air Refueling Squadron fly over a mountainous region in Afghanistan on Jan. 17, 2018. The 340th Expeditionary Air Refueling Squadron’s KC-135s are responsible for delivering two-thirds of all fuel to airborne receivers in the U.S. Central Command’s area of responsibility. (U.S. Air National Guard photo by Master Sgt. Phil Speck) (Portions of this image were obsured for security reasons)