There were grave warnings from European leaders and expletives from California Gov. Gavin Newsom on Tuesday as leaders at the World Economic Forum grappled with the Greenland crisis and heightened concerns over global trade.

The EU chief offered to deepen cooperation with the US in Arctic region and termed imposing additional tariffs a "mistake."

The signal comes a day before EU leaders meet to find ways to respond to President Donald Trump’s Greenland grab and tariff threats.

President Donald Trump has posted private text messages from the head of NATO and France's president to the U.S. President, shortly after Norway's leader confirmed a leaked exchange did show tense correspondence between the Republican and NATO leaders.

President Donald Trump may be backing down on his threat to seize Greenland, but his push for the island has already changed the way foreign policy is done in Washington and beyond. More than any other global issue I’ve seen Trump tackle,