Correct answer: D. The United States worried that if Vietnam fell to the communists, other countries in Southeast Asia would follow.
This was known as "domino theory" -- that the spread of communism in Vietnam would result in other countries in the region falling like dominoes to the influence of communism.
Domino theory was, in a sense, a corollary to the policy of containment that had been the United States' goal regarding communism since the end of World War II. George F. Kennan is known for recommending the policy of containment. Kennan was an American diplomat in Moscow who, in 1946, sent a long telegram of his advice about what the USA needed to do about the Union of Soviet Socialist Republics (USSR). Kennan recommended containing the communist influence the USSR and its allies had. So whenever there was a threat of the spread of communism, as there was in Vietnam, the US tended to react to try to stop that spread.
The Americans had George Washington who trained them to fight and how to avoid smallpox also they knew where they where fighting so they could hide very well
superb porcelain, using a variety of colors—especially blue. realistic marble statues of famous people. pictures of religious figures on wood. flowers, birds, and phoenixes painted on plates and vases.
The Holocene is a geological epoch which began at the end of the Pleistocene (at 11,700 calendar years BP) and continues to the present. The Holocene is part of the Quaternary period.
