Canadian Prime Minister Mark Carney is a geopolitical celebrity these days. In a January speech at the World Economic Forum in Davos, Switzerland, that went viral in foreign-policy circles, he pleaded for the leaders of other middle powers to join Canada in fighting against great-power coercion. But while Carney’s speech made the headlines, the European Union was already implementing the diversification strategy that Carney called for, most notably in trade. In the past seven months, the bloc