A F-15E Strike Eagle pilot approaches a KC-10 Extender from the 908th Expeditionary Air Refueling Squadron before conducting an aerial refuel during a Combined Joint Task Force - Operation Inherent Resolve mission March 20, 2017. The F-15E is a dual-role fighter designed to perform air-to-air and air-to-ground missions. (U.S. Air Force photo/Senior Airman Joshua A. Hoskins)