In 1916, 60-year old General Henri Philippe Pétain, who'd been passed by for promotion most of his life, took charge of a horrific World War I battle that would mark France for generations. The Battle of Verdun, called the Meatgrinder, was the first in modern history where one army's goal was just to kill maximum numbers of the enemy. Amidst this death and destruction, Pétain came to life. Thirty years later, Pétain would go on trial, accused of treason at age 89. He had saved France once, on a First World War battlefield. But when his countrymen turned to him to save them again, as head of government during World War II, he failed spectacularly.