OPERATION ALLIED FORCE -- A B-2 Spirit bomber prepares to receive fuel from a KC-135 Stratotanker during a mission in the European theater supporting NATO Operation Allied Force. The B-2 Spirit is a multi-role bomber capable of delivering both conventional and nuclear munitions. A dramatic leap forward in technology, the bomber represents a major milestone in the U.S. bomber modernization program. The B-2 brings massive firepower to bear, in a short time, anywhere on the globe through previously impenetrable defenses. (U.S. Air Force photo by Staff Sgt. Ken Bergmann)
