What were the causes and effects of the Korean War and why did the US get involved?

Answer 1

The US got involved because they wanted to promote their capitalist ideals and protecting the capitalists in a communist "infested" zone was top priority. Also the Soviets were involved so they had to fight back

I am doing the causes for the Korean War as an 8th grade project, and the way I interpreted the cause for the Korean War was the fact that both sides wanted to unite but could not agree on what type of government, so the North tried to unite it forcefully by crossing the 38th parallel on June 25th 1950.

I am also doing a project on the Korean War and I was taught that the U.S. were involved because of the Truman Document. A promise that states that the U.S. will help any country fighting communism, that was brought up after WWII. Also because of their membership in the United Nations, and because South Korea asked the U.S. for aid.

I am doing an assignment on this and was told that part of the cause was Kim ii sung, the communist dictator of North Korea was convinced that people in the south, would welcome being ruled by his government.