Paechon Line the Tohae Line. Following the end of the Pacific War and the subsequent partition of Korea, most of the Tohae Line was located in the US zone of occupation that later became South Korea, with the line being divided along the 38th Parallel between Changbang and Kalsan, and the Korean National Railroad operated passenger trains on the line between Tosŏng and Ch'ŏngdan until 1950. The line was heavily damaged during the Korean War, and the destruction of the Ryesong River bridge left the line truncated at Paech'ŏn. The truncated line ended up in North Korea after the Korean Armistice, becoming
Australia in the Korean War to as the Fifth Phase Offensive, with the intention of recapturing Seoul. The Chinese launched a major assault between 22 and 25 April that resulted in a victory in the Battle of the Imjin River. At the same time, the UN repelled Chinese forces at Kapyong. Chinese forces of the 118th Division attacked the Kapyong Valley in force, and pushed South Korean and New Zealand troops into retreat. Under heavy pressure, the Korean 6th Division broke, and the line collapsed. American and South Korean men poured through a gap under protective covering fire from Australians who were holding their section