There is no "modern world" -- Churchill's River War -- Livy's Punic War -- Sun-Tzu and Thucydides -- Machiavellian virtue -- Fate and intervention -- The great disturbers: Hobbes and Malthus -- The Holocaust, Realism, and Kant -- The world of Achilles: ancient soldiers, modern warriors -- Warring states China and global governance -- Tiberius.