The Vanquished: Why the First World War Failed to End. By RobertGerwarth. (New York, NY: Farrar Straus and Giroux, 2016. Pp. xvi, 445. $28.00.)The Great War: America and the Remaking of the Global Order, 1916-1931. By AdamTooze. (New York, NY: Viking, 201: Book Reviews