What reason does President Truman give for firing General MacArthur?

President Truman fired General MacArthur primarily due to insubordination and conflicting views on military strategy during the Korean War. MacArthur's public statements and his desire to expand the war into China contradicted Truman's policy of limited engagement. Truman believed that such actions could lead to a broader conflict with the Soviet Union and jeopardize national security. Ultimately, Truman prioritized civilian control over the military and the need for a unified strategy.