It is the embodiment of modern war. From the boxy monstrosities that clanked over trenches and broke the stalemate of World War I to the dreaded German Panzers that extended Hitler's grasp across Europe, to the burning Iraqi hulks that marked the progress of Operation Desert Storm, the tank dominated military theory and practice throughout the twentieth century. And yet it was always far more than this-a fixation in the public mind, a curious compound...