This book explores the causes, operations, endings, and justifications of war. In the process, it demolishes many currently fashionable illusions, such as that peace is always preferable to war, that wars occur because of accidents or misunderstandings, and that technology changes the nature of war. Abundant historical and contemporary examples show, the authors contend, that all wars are deliberate political choices, that military operations follow timeless principles, and that, as Aristotle taught, the natural aim of war is victory. This new edition of the book that Eugene Rostow called "a gem," Michael Howard called "shrewd and trenchant," and "Library Journal" called "persuasive" devotes substantial attention to the wars of the post-Cold War period, including "the war on terrorism."