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Crew chiefs with the 509th Aircraft Maintenance Squadron prepare a B-2 Spirit for flight Aug. 24 at Whiteman Air Force Base, Mo. Twenty B-2s are assigned to the 509th Bomb Wing. The B-2's primary mission is to attack time-critical targets early in a conflict to minimize an enemy's warfighting potential. (U.S. Air Force photo/Senior Airman Kenny Holston)