Question below!
Why did President Johnson believe that it was important for the United States
to win in Vietnam?
Answer:
<em>Hello, There! I'm here to help!</em>
<em>The Correct Answer Is D. He believed in the domino theory.</em>
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Explanation:
Information to backup My Answer!
President Johnson believed that it was most important for the US to win in Vietnam because communists were spread around the world and Australia and the US feared that the domino theory was becoming true.

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only the strong will survive this can also be represented by survival of the fittest
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Aztecs should be your answer
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Political and ethnic rivalries within the countries emerged after independence, due in large part to the poor drawing of the former colonies' borders, which were drawn by their former imperial rulers.