" asked me, “what were the usual causes or motives that made one country go to war with another?”  I answered “they were innumerable; but I should only mention a few of the chief.  Sometimes the ambition of princes, who never think they have land or people enough to govern; sometimes the corruption of ministers, who engage their master in a war, in order to stifle or divert the clamour of the subjects against their evil administration.  "

― Jonathan Swift , Gulliver's Travels: Travels into Several Remote Nations of the World.