USA HISTORY

Detailed explanation-1: -Overview. In 1947, President Harry S. Truman pledged that the United States would help any nation resist communism in order to prevent its spread. His policy of containment is known as the Truman Doctrine.

Detailed explanation-2: -Concerned that the Soviet Union and Communist China might have encouraged this invasion, President Harry S. Truman committed United States air, ground, and naval forces to the combined United Nations forces assisting the Republic of Korea in its defense.

Detailed explanation-3: -The Soviet Union also covertly supported North Korea. After three years of fighting, the war ended in a stalemate with the border between North and South Korea near where it had been at the war’s beginning.

Detailed explanation-4: -Answer and Explanation: The United States became involved in the Korean War to stop the spread of communism in 1950.