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

From a 'trade bazooka' to a sweeping ban on U.S. tech companies like Meta and others, here's how NATO, the EU and Canada could respond if the U.S. invades Greenland.

Europe could face a wave of one-notch credit rating downgrades if tensions with the U.S. over Greenland fracture NATO, Fitch's top sovereign analyst said on Thursday.

Greenland, a semiautonomous territory of NATO ally Denmark, is at the center of a geopolitical storm as Trump insists he wants to own it — and residents of its capital, Nuuk, say it isn’t for sale.