Military Demarcation Line
The line was in large part destroyed by the Korean War, and the Military Demarcation Line established by the ceasefire in 1953 led to the division of the line between the two Koreas, as the armistice line ran between the stations of Kwangsam and Haso; everything south of Kwangsam ended up in South Korea, and everything north of Haso ended up in the DPRK. Although service on the DPRK's portion of the former Kyŏngwŏn Line was restored after the war (becoming today's Kangwŏn Line), the Kŭmgangsan Line was never rebuilt.