The Korean war was not successful in terms of the containment of Communism
Step-by-step explanation:
The hidden agenda of the Korean war even at the time of the intervention from UN was in fact to stop the spread of communism..
This was not something that became successful however as the North Korean regime became a dictatorship and the South was the region that became democratic.
Even after the war there were many nations that accepted the ideas of Russian communism and were following their footsteps in governance.
There was little that the US could do to stop this.