THIS WEEK we published only one cover, considering Donald Trump’s approach to foreign policy. Even before taking office on January 20th he has helped secure a ceasefire and hostage deal in Gaza; he has bid for control over Greenland, with its minerals and strategic position in the Arctic. Mr Trump’s second term will not only be more disruptive than his first; it will also supplant a vision of foreign policy that has dominated America since the second world war.