You can actually research those question, it’s all about picking up your phone and typing it in :)
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Third choice since the very reason of US intervention was the fear of the "Domino Effect." Hoped it helped!
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The legislative branch makes laws, but the President in the executive branch can veto those laws with a Presidential Veto. The president term is 4 years. He/she can serve a max of 2 terms.
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They had so many people and had rich people with many farmers, so they had enough food to feed lots of people.