A KC-135 Stratotanker assigned to the 100th Air Refueling Wing Royal Air Force Mildenhall, England, prepares to transfer fuel to a B-2 Spirit from Whiteman Air Force Base, Mo., off the coast of Spain, June 13, 2017. Two B-2s deployed to the U.K. to participate in theater bomber assurance and deterrence operations. Bomber deployments enhance the readiness and training necessary to respond to any contingency or challenge across the globe. (U.S. Air Force photo/Staff Sgt. Micaiah Anthony)