Foolish monarchs, diplomats, and generals blundered into a war nobody wanted, an Armageddon which evolved with the same grim irreversibility as a Greek tragedy. “In the month of August 1914,” she wrote, “there was something looming, inescapable, universal that involved us all. Something in that awful gulf between perfect plans and fallible men that makes one tremble with a sense of ‘There but for the Grace of God go we.’