How did the political divisions during the cold war affect the korean war, the cuban missile crisis, and the vietnam war?

In all that conflict one side was supported bby USA or Soviet Union therefore each of that conflict or crisis took more time and prolonged

It would take over 1,000 words and more likely over 2,000 words to give you an accurate answer. Just say that the US broke many promises, agreements and acted hypocritically during that period and they all affected the decisions of other nations and events.