The EU has responded firmly to President Trump’s announcement of tariffs on several European countries over the Greenland dispute, expressing solidarity with Denmark and warning of a “dangerous spiral” that could damage transatlantic relations and even lead to suspension of parts of the trade agreement with the US. France, Sweden and the UK have rejected intimidation and pledged a coordinated European response, while the President of the European Council is coordinating a joint position and EU leaders have convened an emergency meeting to weigh diplomatic, economic and political options.