President Xi Jinping vowed to “never forget” NATO’s deadly bombing of the Chinese embassy in Belgrade, during a European trip that’s amplifying fissures in the region’s support for the US. “Twenty-five years ago today, NATO flagrantly bombed the Chinese embassy in Yugoslavia, killing three Chinese journalists,” Xi said, in a Tuesday article published in Politika, Serbia’s oldest daily newspaper. “That we should never forget,” he added. “We will never allow such tragic history to...