Gyeongui Line (1904–1945)
Following Japan's defeat in the Pacific War and the subsequent partition of Korea, the Gyeongui Line was divided at the 38th parallel between North and South Korea. On 25 August 1945, the Soviet Army began operating trains on the line north of Sariwon, whilst trains in the south terminated at Gaeseong. In 1946, the railways in both North and South were nationalised, creating the Korean National Railroad in the South and the Korean State Railway in the North. After the Korean War, the Gyeongui Line was split into three sections. In the South, the Seoul–Jangdan section became the KNR's Gyeongui Line, retaining the same name; in the North, the Bongdong–Pyeongyang section became the P'yŏngbu Line, whilst the Pyeongyang–Sinuiju section became the P'yŏngŭi Line.
Operation Blacklist Forty
Operation Blacklist Forty was the codename for the United States occupation of Korea between 1945 and 1948. Following the end of World War II, U.S. forces landed within the present-day South Korea to accept the surrender of the Japanese, and help create an independent and unified Korean government with the help of the Soviet Union, which occupied the present-day North Korea. However, when this effort proved unsuccessful, the United States and the Soviet Union both established their own friendly governments, resulting in the current division of the Korean Peninsula.