Feudalism is the prevailing social framework in medieval Europe, in which the honorability held grounds from the Crown in return for military administration, and vassals were thusly inhabitants of the nobles, while the workers were obliged to live on their ruler's property and give him reverence, work, and an offer of the deliver, notionally in return for military insurance.
To stop the spread of communism. Hope this helped!
What IS the Cold war?
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I won't answer it for you since you should know.
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What are the effects and what did America and Russia do?
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Build nuclear missiles, submarines, etc.
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But summarizing it all up, the Cold War caused the world's two superpowers to: compete economically and militarily.
