The Cuban Missile crisis (n.) ended when both sides finally preferred living to winning.
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Cuban Missile crisis (n.) ended without nuclear war by something close to a miracle — one Russian submarine officer, Vasily Arkhipov, refusing an order to fire.
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Cuban Missile crisis (n.) was decided not by Kennedy or Khrushchev but by a submarine officer named Arkhipov, who refused to fire a nuclear torpedo — the world was one word from war.
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The Cuban Missile crisis (n.) could have ended in a fair trade any rational man would accept; it was refused because it would have undermined the claim that missiles are a threat only when pointed at us.