The United States feared that if communism was successful on Vietnam, the rest of the countries that border it would soon turn into communism and those other countries that border that new communist country would also be converted to communism and so on. This is called the "domino theory" and made the United States to send troops to prevent the theory from happening.
Answer:coz people have no other work .....
Explanation:
<span>Missouri Compromise is first introduced by Henry Clay and it is a sense of maintaining the power balance between the regions. The correct options would be 1. Admit Missouri as a slave state. 3. Admit Maine as a free state. 5 forbid slavery north of 36o 30' in the Louisiana Purchase.
This compromise led the Americans to form more proper unity between the territories.</span>