Kennedy focuses on what can go wrong when humanitarian and military planners speak the same legal language--wrong for humanitarianism, and wrong for warfare. He argues that law has beaten ploughshares into swords while encouraging the bureaucratization of strategy and leadership. A culture of rules has eroded the experience of personal decision-making and responsibility among soldiers and statesmen alike. Kennedy urges those inside and outside the military who wish to reduce the ferocity of battle to understand the new roles--and the limits--of law. Only then will we be able to revitalize our responsibility for war.