Kim Jong Un Pauses Hostilities to Offer Warm Farewell to South Korean Leader

SEOUL—Kim Jong Un took a break from his regime’s string of missile exams and threats to want South Korea’s outgoing president a heat goodbye.

Mr. Kim, North Korea’s third-generation dictator, exchanged private letters this week with South Korean President Moon Jae-in, whose five-year time period ends subsequent month. The left-leaning, pro-engagement Mr. Moon will probably be changed by a conservative who backs a harder stance in opposition to the Kim regime’s provocations and human-rights violations.