Answer:
a. The containment policy to keep back the North Koreans.
Explanation:
The dismissal of General Douglas MacArthur was ordered by President Harry S. Truman in 1951 given the intentions of the first to use nuclear weapons during the Korean War. At the beginning of 1951, the Chinese already recaptured Seoul. The situation was desperate. But an excellent maneuver by Ridgway against the Chinese, not only allowed the recovery of Seoul but also expelled the Chinese, very worn out by the bombings from South Korea. After this, Truman was finally able to initiate peace negotiations, which were abruptly annihilated by Douglas MacArthur after issuing a statement in which he threatened the Chinese and urged them to surrender. Truman took it by plain and smooth insubordination.
Finally, on April 10, 1951, Truman relieved him of all commands, being officially confirmed on 12. Truman replaced him with the intrepid Matthew Ridgway, who would become Chief of Staff. The US military had to return from North Korea. He gave his last speech to the United States Congress, which would become famous.
