In time, the true costs of World War I were revealed. Wounds of war included fourteen million people—civilians and combatants—killed; over $3 billion spent; four empires destroyed; the world map changed by revolution and treaty; and an unknown loss of spirit for many. Twenty years after the...

Although many soldiers did not come home following World War I, the number of U.S. casualties was small compared to that of European armies. Still, the 585 Days between Declaration of War on April 6, 1917, and the Armistice of November 11, 1918, comprised a deadly period in American military...