Sailfish, where have you been since the 1953 Korean War armistice that ended hostilities in Korea, but did not end the war?   High level talks involving the U.S., China, Russia, Japan and South Korea have been held many times resulting in agreements with North Korea that routinely have been broken by North Korea.  Check this for more information:   https://www.armscontrol.org/factsheets/dprkchron