Why North Korean leader Kim Jong-un toured a Chinese bus factory in Dandong

North Korean leader Kim Jong-un’s tour of a commercial vehicle factory during a surprise visit to the Chinese border city of Dandong on Saturday points to Pyongyang’s drive to modernise its buses and expand industrial ties with Beijing. In a symbolic move, Kim crossed into China via the newly opened New Yalu River Bridge on Saturday and also returned to North Korea via the bridge later in the day. It was Kim’s first trip to China since he attended a military parade in Beijing last September. His...