181027-F-VG386-1037
U.S. Air Force Senior Airman Nicholas Vidmar, 100th Aircraft Maintenance Squadron crew chief, marshals a U.S. Air Force KC-135 Stratotanker before takeoff to conduct aerial refueling training during Exercise Trident Juncture 18, at Rovaniemi, Finland, Oct. 27, 2018. Trident Juncture is the largest NATO exercise since 2015, with more than 50,000 military members from 31 nations. The U.S. military makes up approximately a quarter of the participating personnel. (U.S. Air Force photo by Senior Airman Luke Milano)