(Second Edition with Revised and Improved Figures) This book examines a number of situations where relatively small situational changes or decisions could have produced a major change in the historical outcome. The primary emphasis is on wars in which the US participated to some degree. The author has limited his attention to only 23 situations to keep the scope manageabl (Second Edition with Revised and Improved Figures) This book examines a number of situations where relatively small situational changes or decisions could have produced a major change in the historical outcome. The primary emphasis is on wars in which the US participated to some degree. The author has limited his attention to only 23 situations to keep the scope manageable. Three are from the Napoleonic Wars, one from the US Civil War, three from WWI, one from the Russian Civil War, one from the Korean War, two from the Cuban Crises of 1961-62, and one from the Vietnam Conflict. All the remaining instances are from WWII with both the Atlantic and Pacific Theaters of Operation represented. The key decisions are roughly divided evenly between strategic and tactical with many containing elements of both. 58 illustrations, glossary, bibliography