U.S. Air Force Staff Sgt. Jalah Patten, 86th Operations Support Squadron air traffic control tower watch supervisor, left, shows members of the Ukrainian armed forces a tower simulator system during their visit to Ramstein Air Base, Germany, Aug. 5, 2021. The system allows ATC Airmen to train on airspace and airfield navigation and management on multiple simulated U.S. Air Force bases. The Ukrainian service members were able to review fundamental concepts to potentially enable them to host a variety of U.S. Air Force and NATO aircraft at their installations. (U.S. Air Force photo by Senior Airman John R. Wright)