One U.S. KC-135 assigned to the 155th Air Refueling Wing, provides additional fuel to four U.S. Air Force Fighting Falcons assigned to the 52nd Fighter Wing, near Ostrava, Czechia Sept. 19, 2020. These aircraft later flew over the "NATO Days 2020" airshow in Ostrava, followed by Prague and Pilsen, Czechia. (U.S. Air Force photo by Senior Airman Chanceler Nardone)