Korean War regained "Line Kansas", just north of the 38th parallel. The UN's "Line Kansas" halt and subsequent offensive action stand-down began the stalemate that lasted until the armistice of 1953. For the remainder of the Korean War the UN Command and the PVA fought but exchanged little territory, as the stalemate held. Large-scale bombing of North Korea continued, and protracted armistice negotiations began 10 July 1951 at Kaesong. On the Chinese side, Zhou Enlai directed peace talks, and Li Kenong and Qiao Guanghua headed the negotiation team. Combat continued while the belligerents negotiated; the goal of the UN Command forces was
Soviet Union in the Korean War pilots flying MiG-15 jets participated in battles around the Yalu River Valley on the Chinese-Korean border in the area known as "Mig Alley" and in operations against UN "trainbusting" attacks in Northern Korea, with considerable success. The lack of a shared language between Soviet, Chinese and North Korean pilots frequently led to incidences of friendly fire as other MiG fighters were mistaken for American F-86 Sabre jets and shot down. The MiG-15 was a jet aircraft, supplied in large numbers to Chinese and North Korean forces during the war by the Soviet Union. Owing to their modern design (they were