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.
Korean Armistice Agreement
On 27 April 2018 the Panmunjom Declaration for Peace, Prosperity and Unification on the Korean Peninsula was signed by South Korean President Moon Jae-in and the North Korean leader Kim Jong-un which commits the two countries to denuclearization and talks to bring a formal end to conflict. The two leaders agreed to, later in the year, convert the Korean Armistice Agreement into a full peace treaty, formally ending the Korean War after 65 years. The DPRK later called off talks with South Korea scheduled for 16 May, blaming U.S.-South Korean military exercises, and threw the planned 12 June summit into doubt, saying it might not attend if Washington continues to demand it unilaterally abandon its nuclear arsenal. The 2018 North Korea-United States Summit was held in Singapore on June 12, 2018 at Capella Hotel despite previous tensions before the summit. North Korean leader Kim Jong Un and United States President Donald Trump signed a joint declaration that declared the following: 
The joint statement also includes Trump's commitment to providing security guarantees to North Korea and that there will be follow-up negotiations between Secretary of State Mike Pompeo and an undetermined high-level North Korean official thereafter.