As Trump calls for a U.S. takeover of Greenland, NATO's future hangs in the balance. Here are 15 claims about the security ...

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

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

NATO is weighing a potential “Arctic Sentry” mission as tensions rise between the United States and Denmark over Greenland.

The Trump administration has repeatedly said the U.S. should be in control of Greenland, which is part of Denmark and NATO.

The demise of the Intermediate-Range Nuclear Forces (INF) Treaty poses a substantial challenge to the security and cohesion of the North Atlantic Treaty Organization (NATO). The defense alliance ...

A look at the timeline of when NATO was founded to the present day.The North Atlantic Treaty Organization was founded in 1949 ...

President Donald Trump’s lust for Greenland may be the final nail in NATO’s coffin. His threat to invade the Arctic island is ...