Why was General Douglas MacArthur suspended from command during the Korean War?

General Douglas MacArthur was suspended from command during the Korean War primarily due to his public criticism of President Harry S. Truman and his assertion that Truman was restricting military strategies. MacArthur advocated for more aggressive actions against communist forces, which included proposing to expand the war into China and utilizing potential nuclear options. His statements and actions created a significant tension between military and civilian leadership, undermining the principle of civilian control over the military. This conflict reached a tipping point when MacArthur continued to publicly challenge Truman's policies, which the president viewed as insubordination. As a result, Truman felt compelled to relieve MacArthur of his command to maintain proper authority and cohesion within the military and government structure.