The belief that if a region or country falls to Communism, then its neighbors will
eventually fall to Communism is known as what?
A. Law of reciprocity
B. The Eisenhower Doctrine
C. Mutually Assured Destruction
D. The Domino Theory
E. None of the above



Answer :

Final answer:

The domino theory suggests that if one country falls to communism, neighboring countries are at risk of falling too.


Explanation:

Domino theory refers to the belief that if one country falls to communism, then neighboring countries will also follow suit. This theory influenced US policy during the Cold War, particularly in Southeast Asia and Vietnam.


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