● ●Amphibious Assault • 1950, MacArthur reversed the war by launching a significant amphibious assault at Inchon behind the North Korean lines, a full–scale offensive then drove the North Koreans back toward the 38th Parallel. • Taking advantage of their momentary military superiority, U.N. forces pushed across the 38th Parallel on October 9, 1950 October 9, 1950, and pressed on toward the Yalu River Yalu River, the boundary between North Korea and the PRC