Book excerpt: In December 1972, with an increasingly dovish Congress preparing to cut off all funding for the war in Vietnam, President Richard Nixon ordered the bombing of Hanoi by the Strategic Air Command's "big stick," its fleet of B-52 bombers. Never before had a B-52 been lost in combat, but the North Vietnamese SAM missile crews knocked them out of the sky in the first days of the engagement. Despite the losses, the surviving bombers kept coming, inflicting huge losses on the North Vietnamese. For eleven days the momentum swung back and forth, moving from what appeared to be a certain U.S. triumph, to a possible North Vietnamese victory, to the ultimate ambiguous denouement in which both sides won and lost.