A KC-135 Stratotanker with the 121st Air Refueling Wing participates in a refueling mission with F-16 Fighting Falcons from the 180th Fighter Wing April 18, 2018 in the skies over Ohio. The KC-135 provides the core aerial refueling capability for the United States Air Force. (U.S. Air National Guard photo by Airman 1st Class Tiffany A Emery)