Korean reunification selected the 38th parallel as a dividing line. Japanese troops to the North of this line were to surrender to the Soviet Union and troops to the South of this line would surrender to the United States. This was not originally intended to result in a long-lasting partition, but Cold War politics resulted in the establishment of two separate governments in the two zones in 1948 and rising tensions prevented cooperation. The desire of many Koreans for a peaceful unification was dashed when the Korean War broke out in 1950. In June 1950, troops from North Korea invaded South Korea.
South Korea in the Vietnam War Lai Đại Hàn were ostracised and neglected by Vietnamese society following the war. Korean civil groups have discussed the issue considerably, and calls have been made for a Korean inquiry, in line with the Truth and Reconciliation Commission on massacres committed by government forces during the Korean War, known as the People's Tribunal on War Crimes by South Korean Troops during the Vietnam War. The alleged war crimes have had an impact upon South Korea–Vietnam relations and led the Vietnamese government to oppose the "commemoration of mercenaries" when South Korean President Moon Jae-in honoured the 50th Anniversary of South Korean