Distinguished American Admiral Ernest King was a graduate of the Naval Academy, and saw action in the Spanish-American War. He was both a submariner and a naval aviator and as such, was a strong supporter of the growth of naval aviation. After the attack on Pearl Harbor, Roosevelt appointed King Commander- in-Chief of the US fleet. He was considered to be one of the greatest American commanders of World War II, successfully directing the US fleet to victory in both the Atlantic and Pacific Oceans. Bibliography: Buell, Thomas B. Master of Sea Power: A Biography of Fleet Admiral Ernest J. King. 1980. Naval Inst Press.