During which war did the commander serve the "Tropic Lightening"? 
Samuel Tankersley Williams:  He also commanded the 25th Infantry Division during the Korean War and served as commander of Military Assistance and Advisory Group – Vietnam, the predecessor to Military Assistance Command – Vietnam. 25th Infantry Division (United States): The 25th Infantry Division (nicknamed "Tropic Lightning" and the "Electric Strawberry" is a U.S. Army division based in Hawaii.
Korean War