The Enlightenment played an important role in the French Revolution. The Enlightenment transformed the monarchy, creating the idea of a republic. The bourgeoisie liked the ideas of John Locke. He said no king should have absolute power and liked the idea of a constitutional monarchy.
In the 1950's, Communism was a big no-no, so when Communist North Korea invade South Korea the United Nations responded by sending financial aid to South Korean defenders and it began to think about sending troops to fight off the Commies.
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