The past year has been marked by ebbing and flowing of tensions in Europe and Canada over the U.S.'s commitment to NATO.

Leaders of Denmark and Greenland insisted Thursday that the island's sovereignty was nonnegotiable after U.S. President Donald Trump said he had agreed with the NATO chief on the framework of a future Arctic security deal that Trump said would grant the U.

In a Truth Social post, President Trump suggested putting the world’s strongest military alliance “to the test” by invoking its mutual defense clause.

Veteran diplomat tells CBS News Denmark "ready to cooperate" on Greenland, and he expects U.S. to abandon "anachronistic approach of colonialism" post-Trump.

We have to work together (with US) respectfully, without threatening each other,' premier tells reporters ahead of EU leaders meeting in Brussels - Anadolu Ajansı

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

NATO Secretary-General Mark Rutte met with officials from Denmark and Greenland on Monday to discuss “collective security” as President Trump pushes to acquire the semiautonomous Danish

Shaheen said the Trump administration's reported interest in taking over Greenland has prompted strong reactions abroad.