President Truman's relief of General Douglas MacArthur creation of a professional military. This made civilian control increasingly problematic when coupled with the constitutional division of powers between the President as commander-in-chief, and the Congress with its power to raise armies, maintain a navy, and wage wars. In relieving MacArthur for failing to "respect the authority of the President" by privately communicating with Congress, Truman upheld the President's role as pre-eminent. Harry S. Truman became President of the United States on the death of Franklin D. Roosevelt in 1945, and won an unexpected victory in the 1948 presidential election. He was the only president who served after 1897
President Truman's relief of General Douglas MacArthur of the North Korean Army. That being the case, operations would be necessary north of the 38th parallel, although his Assistant Chief of Staff, G-2, Major General Charles A. Willoughby, warned on 31 August that 37 Chinese divisions were grouping on the border between China and North Korea. The Joint Chiefs agreed with MacArthur on this issue. A National Security Council paper endorsed the legality of action north of the 38th parallel. The paper recommended that only South Korean troops be employed in the border regions with China and Russia. Should the Soviet Union intervene, MacArthur was to immediately retreat