A U.S. Air Force F-15C Eagle pulls away from two F-15E Strike Eagles while performing a missing man formation in honor of Battle of Britain Day over RAF Lakenheath, United Kingdom, Sept. 24, 2021. The commemoration highlights the largest German attack on Britain during World War II, which resulted in a resounding Royal Air Force victory and a halt to German invasion plans. (U.S. Air Force photo by Senior Airman John Ennis)