AMERICA’S HUNGER for Greenland is setting off an explosive row within NATO.  President Donald Trump, infuriated by European allies’ resistance to his effort to annex the autonomous Danish territory, said on January 17th that he would impose 10% tariffs on imports from eight European countries that had sent troops there two days earlier.

TIME spoke to legal experts about whether Trump could legally pull the U.S. out of NATO and the wider implications.

U.S. NATO ambassador Matthew Whitaker defends American focus on Greenland amid European backlash, calling Arctic security crucial for continental defense.

GOP Rep. Michael McCaul (Texas) said Sunday that the United States’s invasion of Greenland would mean “war” with NATO. “The fact is, the president has full military access to Greenland to protect us from any threat.

Prime Minister Mark Carney is considering sending soldiers to Greenland for military exercises with NATO allies, as U.S. President Donald Trump threatens tariffs on European nations unless they let him purchase and control the semiautonomous island,

A Congressional delegation is visiting Denmark to offer support to the country and NATO allies as Trump continues his push to take Greenland.

President Donald Trump warned NATO that the U.S. needs Greenland for national security, saying that Russia or China would take it otherwise.

As NATO prepares for war games around Greenland, Russia is highlighting the Trump administration's disagreement with its closest allies over the island.