A B-2A Spirit bomber assigned to the 509th Bomb Wing, conducts aerial refuelling operations with a KC-135 Stratotanker assigned to the 100th Air Refuelling Wing over the North Sea Sept. 16, 2019. The B-2 is currently deployed to the United Kingdom as part of Bomber Task Force Europe, which is focused on strengthening multinational relationships and improving allied cooperation. (U.S. Air Force photo/ Tech. Sgt. Matthew Plew)