John Keegan asks us to consider questions that are seldom asked: What makes a great military leader? Why is it that men, indeed sometimes entire nations, follow a single leader, often to victory, but with equal dedication also to defeat?

Dozens of names come to mind...Napoleon, Lee, Charlemagne, Hannibal, Castro, Hussein. From a wide array, Keegan chooses four commanders who profoundly influenced the course of history: Alexander the Great, the Duke of Wellington, Ulysses S. Grant and Adolph Hitler. All powerful leaders, each cast in a different mold, each with diverse results.