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: Nevertheless, slavery received important protections in the Constitution. The notorious three-fifths clause—which counted three-fifths of a state's slave population in apportioning representation—gave the South extra representation in the House of Representatives and extra votes in the Electoral College.
Explanation: wait for another person to answer in case im wrong
<span> basically, it was so environmentally hazardous
that they had to move</span>
Answer: America had placed an embargo on Japan due to their over achieving power and took over most of the South Pacific islands. Japan was wanting to upward/increase its oil for its war effort and saw the Pacific Fleet of the United States as its biggest threat.
