Write an essay repose to the following question- The main reason for the US entry into the Korean War was their fear of communism. How far do you agree?

please help ASAP

Overview

In June 1950 communist North Korea invaded South Korea. The United States came to the aid of South Korea at the head of a United Nations force composed of more than a dozen countries.

Communist China joined North Korea in the war in November 1950, unleashing a massive Chinese ground attack against American forces. The Soviet Union also covertly supported North Korea.

After three years of fighting, the war ended in a stalemate with the border between North and South Korea near where it had been at the war’s beginning.

This was the first hot war of the Cold War, and in it the United States demonstrated its continued commitment to containment (the idea that the US would ultimately defeat communism by containing its spread).

The Korean War begins

When Korea was liberated from Japanese control at the end of the Second World War, the United States and the Soviet Union agreed temporarily to divide Korea at the 38th parallel of latitude north of the equator. This division resulted in the formation of two countries: communist North Korea (supported by the Soviets) and South Korea (supported by the United States).

Map of North Korea and South Korea. The red line indicates the present-day border between the two nations. Map adapted from Wikimedia Commons.

Five years after the country’s partition, the communist leader of North Korea, Kim Il Sung, decided to attempt to reunify Korea under his control. On June 25, 1950, Kim launched a surprise invasion of South Korea.^1

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Believing that the Soviet Union had backed the invasion, United States President Harry Truman and his advisers followed through on their policy of containment, refusing to allow communism to spread anywhere in the world. Within two days of the invasion, the United States had rallied the United Nations Security Council to declare support for South Korea. An American-led UN coalition deployed to South Korea.^2

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we need the map to answer the question