An Air Force Reserve A-10 Thunderbolt II fighter from Kansas City, Mo., participates in exercise Combat Raider 18-1 at Ellsworth Air Force Base, S.D., Oct. 11, 2017. Four A-10s joined Ellsworth aircrews in a joint military exercise over the Powder River Training Complex to prepare for their next deployment. (U.S. Air Force photo by Airman 1st Class Donald C. Knechtel)