A B-2A Spirit bomber assigned to the 509th Bomb Wing leads a delta formation consisting of two F-15C Eagles assigned to the 48th Fighter Wing and two Royal Air Force F-35B Lightning IIs as they conduct aerial operations over the North Sea, Sept. 16, 2019. The 48th Fighter Wing and the Royal Air Force routinely train with integrated fourth and fifth-generation capabilities to deliver full spectrum air combat support to European allies and partners. (U.S. Air Force photo by Tech. Sgt. Matthew Plew)