in exactly one hundred years, that led to the defeat of the Schlieffen Plan, four years of trench warfare, America’s entry, Germany’s collapse in the autumn of 1918, the abdication of the Kaiser, the dismemberment of Germany at Versailles, and the rise to power of a veteran of the Western Front who, four years after the war’s end, was unreconciled to his nation’s defeat. “It cannot be that two million Germans should have fallen in vain,” cried Adolf Hitler in 1922. “No, we do not pardon, we demand—vengeance.”
