The main way in which the Marshall Plan impacted the European economy in the post-World War II era was by providing billions of dollars of aid to make sure that Europe didn't fall into the kinds of conditions that lead to tyrannical leaders.
Answer:
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https://courses.lumenlearning.com/suny-ushistory1ay/chapter/life-and-culture-in-the-west/
Explanation:
Advocating independence from Great Britain to people in the Thirteen Colonies.
It meant that as soon as one country falls under communist control, another country would fall and so on. Vietnam at the time was split into North (communist) and South (being attacked by North) and the US didn't want communism to spread, reasoning that it might eventually come to the US if nothing was done.