U.S. Air Force Staff Sgt. Jake, 912th Air Refueling Squadron crew chief, speaks with pilots of a KC-135 Stratotanker over the radio prior to take off Sept. 19, 2016, at Incirlik Air Base, Turkey. The KC-135 Stratotanker provides the core aerial refueling capability for the U.S. Air Force and has excelled in this role for more than 50 years. (U.S. Air Force photo by Staff Sgt. Jack Sanders)