As in 2018, North Korean leader Kim Jong Un's first foreign visit of 2019 is to China. Chinese officials confirmed the trip on Jan. 8, the morning after reports surfaced of a mysterious North Korean train crossing the Chinese border under tight security. Made on the invitation of President Xi Jinping, Kim's trip is set to last four days and will be his fourth to China. Kim is accompanied by both his wife and sister along with a high-level delegation that includes lead nuclear negotiator Kim Yong Chol, Defense Minister No Kwang Chol and Foreign Minister Ri Yong Ho....