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

It’s a truism that this is Nato’s worst crisis since the last one. Despite its current travails, the alliance has never been plain sailing, and yet it has lasted more than 75 years, since April 4 1949.

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

Step back and try to make sense of President Donald Trump’s foreign policy and national security objectives when it comes to acquiring Greenland.

The North Atlantic Treaty Organization began in 1949 as a bulwark against the Soviet Union, but has expanded in size in the decades since

After President Donald Trump touched down in Davos to meet with the World Economic Forum, he sent out a message to his followers suggesting treaty organizations like NATO and the United Nations were "cults.

Treasury Secretary Scott Bessent dismantled NBC host Kristen Welker’s “false choice” framing that the United States must decide between the North Atlantic Treaty Organization (NATO) and Greenland during a Sunday appearance on “Meet the Press.

A look at the timeline of when NATO was founded to the present day.The North Atlantic Treaty Organization was founded in 1949.That was after World War II.Europe