The correct answer is the Berlin Wall.
The Berlin Wall was built in 1961 in order to separate West Berlin, which was controlled by the US, France, and Great Britain, from East Berlin (which was controlled by the Soviet Union). This wall split up families and became a significant piece of symbolism during the Cold War era. This wall symbolized the stark differences between the United States and Soviet Union on how a society should be run, as East and West Berlin were run in two completely different ways.
Answer:
Protect itself from attack.
Explanation:
The US attempted to gain influence to protect itself from such "Evil Commie ideals" via foreign influence. An example of this is Vietnam, where despite the US not being directly threatened, the government was acting convincing in the argument that "the domino effect" would soon reach the US, and anarchy would fall upon all western civilized nations. A bit exaggerated, but makes sense.
35% of 40 is 14
51 is 85% of 60
The correct answer is C) the communist takeover in Cuba in 1959.
The event that represented a threat to U.S. national security interests during the 1950s was the communist takeover in Cuba in 1959.
The Soviet Union presence in Cuba, supporting the leadership of Cuban leader Fidel Castro, represented a threat to U.S. national security interests in the region. Cuba is so close to the Florida peninsula, and the presence of the Soviet Union on the island of Cuba worried the US government so much. This was one of the tensest moments between the United States and the Soviet Union during the Cold War years.