A U.S. Air Force KC-135 Stratotanker from the 100th Air Refueling Wing, RAF Mildenhall, England, refuels F-35A Lightning IIs from the 48th Fighter Wing, RAF Lakenheath, England, and trains with Finnish Air Force F/A-18 Hornets during exercise Atlantic Trident 25 over Finland, June 18, 2025. Atlantic Trident 25 is a recurring multinational training exercise between the U.S., U.K. and France to train in an interoperable environment, refining operational integration and ensuring Allied forces can seamlessly secure the Euro-Atlantic region. Finland hosted this iteration of the training series for the first time.