U.S. Air Force 1st Lt. Logan Ingersoll, left, 351st Air Refueling Squadron KC-135 Stratotanker pilot and Maj. Lonnie Hayes, right, 351st ARS instructor pilot, go through a pre flight checklist on a KC-135 assigned to the 100th Refueling Wing at RAF Milldenhall, England, July 22, 2020. The KC-135 flew operations over the Black Sea integrating with assets across all domains demonstrating the ability of U.S. forces to operate with international boundaries in the Black Sea.