Only five years ago, then-British Prime Minister David Cameron was celebrating a “golden era” in U.K.-China relations, bonding with President Xi Jinping over a pint of beer at the pub and signing off on trade deals worth billions. Hostile rhetoric has ratcheted up in recent days over Beijing’s new national security law for Hong Kong. Britain’s decision to offer refuge to millions in the former colony was met with a stern telling-off by China.
