Because they disagreed on how to win the korean war. MacArthur wanted to get down to business and bomb them but truman wanted to wait and piddle around. Hope this helps!
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North or south if u need more help just let me know hope this helps u
Answer: The civil war was definitely a traumatic experience tens of thousands of lives were lost. But the civil war also had many positive long term affects that we still feel on America today for example the civil war abolished slavery and have freed slaves the right to vote.