ULAANBAATAR, Mongolia — Mongolian President Ukhnaagiin Khurelsukh told President Lee Jae Myung that Mongolia would play a role in helping create conditions for the resumption of long-stalled inter-Korean dialogue, according to Cheong Wa Dae. National Security Advisor Wi Sung-lac said Thursday that Seoul and Ulaanbaatar agreed to “strengthen cooperation to achieve peace on the Korean Peninsula” following a summit between Lee and Khurelsukh earlier in the day. “In particular, President Khurelsukh