Modern democracy, with its mix of universal suffrage and property rights, looks remarkably like a compromise born of centuries of military competition among constitutionally evolving states, according to which the general public supplies the manpower to fight and moneyed interests supply the capital to train and equip the troops. As a result, democracies are likelier than non-democracies to win wars, because they mobilize their societies more fully, and because citizens, who bear the costs, have the electoral power to stop politicians from fighting wars that are reckless and unnecessary.