John Keegan’s brilliant look at the meaning of leadership In The Mask of Command, John Keegan asks us to consider questions that are seldom asked: What is the definition of leadership? 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. The Mask of Command is a companion volume to John Keegan's classic study of the individual soldier, The Face of Battle : together they form a masterpiece of military and human history.