Assigned to General Douglas MacArthur, Rowny became MacArthur's spokesman and one of the planners of the landing of Inchon (September 15, 1950), which forced a North Korean retreat and enabled the taking of Seoul. Rowny air dropped a bridge to cross a chasm permitting the rescue of the surrounded Marines and Army troops at the Chosin Reservoir. He was in charge of the evacuation of United States troops which rescued one hundred thousand North Koreans who wished to join South Korea.