“Washington already has tremendous access to Greenland under past agreements with Denmark; U.S. troops already operate in Greenland and Washington can send more. Trump’s demand that Denmark grant the territory to the U.S. is a body blow to U.S. relations with its European allies. It also hurts NATO, a military alliance that includes the U.S. and Denmark — and which would defend Greenland should an adversarial power threaten it.”
https://www.politico.com/news/magazine/2026/01/21/mag-toosi-greenland-00740006