Cause: This war began on June 25, 1950, when North Korea, a communist nation, invaded South Korea. Prior to World War IIís conclusion , North and South Korea had been a single country known as Korea. After the war, Korea became two countries. By invading South Korea, North Korea hoped to reunite the two nations as a single country under communism.
With North Koreaís invasion of South Korea, The United States feared the spread of communism. Determined to stop North Korea, The United States sought permission from the United Nations to support militarily the South Korean government. The United Nations granted permission to The United States to send troops to the two Koreas to free South Korea from North Koreaís military occupation. Although many of the soldiers sent to South Korea were members of The United Stateís military, they were under the control of the United Nations. Because of this and because The United States never formally declared war on North Korea, many people contend that the Korean War should be called the Korean Conflict rather than referred to as a war. Technically, these people are right from the American perspective, yet North and South Korea were clearly engaged in a war. The American troops, as well as those from other countries, were hoping to protect South Korea from communism and thus were participating in the Koreanís war.
With the arrival of the United Nations forces in South Korea with the Inchon Invasion, the tide of the war quickly turned against the North Koreans. The United Nations forces and the South Koreans quickly drove the North Koreans back into North Korea. The South Koreans and United Nations forces did not simply stop with North Koreas withdrawal from South Korea. These forces continued to attack the North Korean military, hoping to free North Korea from communist control. By October 1950, the United Nations troops had driven North Korean forces to the border of China. Fearful that the UN soldiers intended to invade China, another communist nation, Chinese military forces crossed the Chinese Ė North Korean border and launched an attack against the United Nation troops. By early 1951, the Chinese had driven the United Nations troops to the 38th parallel. While both sides launched numerous attacks against the other, neither side succeeded at dislodging its opponent.
Conclusion: On July 27, 1953, both sides agreed to a ceasefire, essentially bringing the Korean War to an end. South Korea remained free from communism, and the original borders of these two countries remained essentially unchanged from before the conflict.