Freed from an endless round of EU gatherings, British diplomats expect to have more time for globe trotting. Alexander Downer, a former Australian foreign minister, has pointed out that there was a period of 17 years when no British foreign secretary visited Australia; such slights are unlikely to be repeated. Over the year since Brexit various nimble moves—from offering people in Hong Kong a path to British citizenship after China's crackdown there, to sanctions on Belarus while the rest of Europe dithered, to rapid approval for a covid...