US President Donald Trump has made disruption a governing principle in his second tenure. Nowhere is it more visible than in his assault on global trade and his contempt for long-standing allies. From publicly hectoring the European Union (EU) at Davos to testing Europe’s resolve over Greenland, he’s done it all. But with Europe showing some spine over Greenland, Trump, in true business negotiation style, briefly backed down from threats to use force to negotiate a settlement with Denmark and Greenland. However, Trump continues to signal the transatlantic partnership is no longer a given.