U.S. Airmen assigned to the 351st Air Refueling Squadron and the 100th Aircraft Maintenance Squadron reviews a checklist prior to a flight supporting exercise Baltic Trident at Royal Air Force Mildenhall, March 17, 2021. The 100th Air Refueling Wing exercises agile combat employment concepts to strengthen alliances and partnerships, to deter aggression, maintain stability, and ensure free access to common domains in accordance with international law. (U.S. Air Force photo by Tech. Sgt. Emerson Nuñez)