Condition of the United States Army at the start of the Korean War

What was the condition of the United States Army at the start of the Korean War? Explain why the Army was in this condition.
What was the significance of the Port of Pusan to the U.S. war effort?
What type of maneuver was the Inchon landing operation? What was the significance of the operation?
Why did Truman relieve General MacArthur? Do you agree or disagree with his decision?
What were the four different phases of the Korean War?
Discuss the legacies of the Korean War.
Discuss the multiple perspectives of the Korean War (e.g., perspectives of the North and South Koreans, the Americans, or the Chinese).