The reaction among America's allies was summed up by the speech of Canadian Prime Minister Mark Carney, who said "the middle powers must act together because if we're not at the table, we're on the menu."
From the BBC World Service: After announcing a vague deal over Greenland, the president said that the U.S. will not impose tariffs on eight NATO countries.
President Trump announced new tariffs on European nations if they stand in the way of the U.S. acquiring Greenland. The EU could hit back relatively quickly.