These stereoptic cards offer a tale of war reduced to two basic elements: soldiers on parade at home followed by the unburied corpses of soldiers on the battlefield. How should we read this story? At first glance, it seems to be about the gap between dreams and reality in war: the transformation of men from objects of admiration in society to a meal for rats, bugs, worms, and microbes in a foreign wasteland. In other words, the pictures seem to tell a story about the utter senselessness of the First World War. But does that interpretation do justice to the lives of these men? Does it tell us why they wore the uniform and sacrificed their lives? Does it tell us about their experience of war? And what about the politicians and generals who sent millions to their deaths? Can we write them off as insane or incompetent fools? Or should we take them seriously and try to fathom their mental universe? Finally, what lasting effects did this violence and loss have on the societies that fought this war? These are some of the questions that inform my interest in military history.