Why Kim Jong-un’s border trip to China differs from past pre-summit playbooks

North Korean leader Kim Jong-un’s trip to the Chinese border city of Dandong on Saturday echoed the intense coordination that preceded his previous summits with US President Donald Trump. Between March 2018 and June 2019, Kim met Chinese President Xi Jinping five times across Beijing, Dalian and Pyongyang, and three of those occasions happened not long before his summits with Trump. Yet, while Saturday’s unannounced visit appeared superficially similar, analysts said the strategic focus had...