How did the us stop communism through the Korean war?

Answer 1

Eisenhower said that if they did not end it a bomb was going to be dropped and the both koreas became scared and signed the treaty and deffinatly split up korea into north koera being communist and South Korea being democratic. and that is how gangama style was invented

Answer 2

The boundary between North and South Korea remains where it was at the start of the war.

Answer 3

The US did not stop Communism. They merely prevented it from taking over South Korea.