Why was General Douglas Macarther fired?

General Douglas MacArthur was fired by President Harry S. Truman in April 1951 primarily due to differences in military strategy during the Korean War. MacArthur advocated for a more aggressive approach, including the potential use of nuclear weapons against China, which Truman and his administration opposed, fearing it could escalate into a larger conflict. Additionally, MacArthur's public criticism of U.S. policy and his willingness to challenge civilian authority contributed to Truman's decision to relieve him of command.