The Korean war had a purpose but it had largely failed.
Explanation:
Truman can and cannot be blamed for the war as he had formulated this policy of attacking in per preemptive measures to control the spread of communism that had plagued the US for so long.
At the same time the nature of the policy was such that it has led to the development of the US in certain senses.
So, as all things in history it is a two way thing and often based around the perspective one has of things.
The war itself was not a success in terms of containing communism as North Korea was out of grasp.
Hey there!
"Who was the main writer of the Declaration of Independence?"
The main writer of the Declaration of Independence was:

Good luck on your assignment and enjoy your day!
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<span>The Pacific Fur Company is the answer.</span>
A national level is everywhere but a state level is in your specific state
The Boston Tea Party.
Explanation:
They revolted against the British by throwing tea off a boat.