The correct answer is the following.
During the Cold Waar years, the Soviet Union tried to spread Communism in many parts of the world, not only in Eastern Europe. Communism reached China, Vietnam, and in the Americas, it reached Central America and the Caribean. The best example in the Caribean was the island of Cuba. In Central America, countries such as Nicaragua and El Salvador tried to implement socialist governments that were against the interest of y¿the United States. The US always tried to stop Communism from spreading in different territories and Central and South America were strategic regions for the US.
The government of the United States supported opposition parties to socialist governments. Such as in the case of the "Contras" in Nicaragua. The US could not allow Communism to infiltrate in more governments and it helped Central America opposition organizations and parties with money and military support.