President Trump signed a security agreement with Denmark and Greenland on Sept. 22, on the sidelines of the UN General Assembly, capping off a fight that started more than a year ago when he first floated acquiring the island outright. The deal is real. What it actually says, and what Trump says it says, are not quite the same thing, and that gap is the story.
Where This Started
In March 2025, Trump told a joint session of Congress the U.S. would acquire Greenland “one way or the other.” Greenland's prime minister at the time, Múte Egede, rejected it flatly on Facebook: “We do not want to be Americans, nor Danes, we are Kalaallit [Greenlanders]. We are not for sale and cannot be taken. Our future is determined by us in Greenland.” That rejection, headlined “Greenland is ours,” came the week before Greenland's own parliamentary elections, and it set the tone for most of the next year: Trump pushing for ownership or control, Denmark and Greenland publicly refusing to sell.
Greenland elected a new government soon after; Jens-Frederik Nielsen became prime minister, with Egede moving into the role of foreign minister. That's the team that ended up signing this week's deal, not the one that rejected Trump's opening pitch.
What Trump Is Saying Now
Announcing the agreement days before the signing, Trump said the deal gives the U.S. “permanent control over security, and all other needs, in Greenland, completely addressing ALL of our many U.S. concerns,” and told reporters the U.S. would “immediately begin the process of developing a large military presence in the appropriate locations, including building two very major military bases.” He's framed it, before the UN and elsewhere, as a clean, total win, exactly the outcome he'd been demanding since the Greenland fight started, just achieved by agreement instead of acquisition.
What Denmark and Greenland Are Saying
Danish Prime Minister Mette Frederiksen's framing is notably narrower than Trump's. She's emphasized that the deal “recognizes the sovereignty and territorial integrity of the Kingdom and the Greenlandic people's right to self-determination,” a direct rebuttal to “permanent control” read as anything resembling ownership. Danish Foreign Minister Lars Løkke Rasmussen called it hopefully “a binding agreement that strengthens security in the Arctic and the North Atlantic,” and Greenland's new prime minister, Jens-Frederik Nielsen, said it would benefit “not only our collective security, but also the continued development here in the country.” Foreign Minister Egede, the same official who once said Greenland was “not for sale,” struck a notably relieved tone this time: “I'm pleased that we finally have an end product within reach. It's about time.”
Relief is not the same thing as endorsing Trump's “permanent control” language, and none of the three officials used that phrase themselves. Their public statements consistently center on sovereignty staying intact and security cooperation, not U.S. control.
What the Deal Actually Contains
This section was updated after publication: the White House posted the agreement's full text the afternoon of the signing, after this article had already gone out citing only secondhand reporting on the terms. Corrected against that text and CBS News's read of it: the agreement expands Pituffik Space Base and establishes new defense-area facilities at Narsarsuaq and Mestersvik, but new installations beyond those aren't unilateral. Per CBS, “any of the three parties can propose more ‘defense areas’ as needed, subject to approval by the others,” with the text itself calling for “modalities and technical details to be mutually agreed.” That's a real expansion of what the U.S. can build, but it runs through mutual agreement among all three parties, not a U.S. green light alone, which is closer to Fox News's original framing than to the text.
On outside powers, the agreement blocks non-NATO countries from establishing manned or unmanned installations or stationing persistent forces in Greenland unless all parties agree otherwise, aimed squarely at Russia and China. That's a real, meaningful restriction, but it isn't the blanket U.S. veto over every foreign presence, allied, touristic, or otherwise, that Trump's “permanent control” language implies. On investment, the agreement intensifies screening of foreign investment from non-NATO, non-EU sources in sensitive sectors; Danish coverage describes Greenland applying that screening in close cooperation with Denmark, with the U.S. as a party to the underlying rule rather than the sole decision-maker.
On troop numbers, roughly 150 U.S. service members are currently stationed at Pituffik, down from about 6,000 at the Cold War peak; that's the real baseline the new bases would expand from, not the 200 figure this article originally cited. And notably, the agreement is reported to persist even if Greenland eventually becomes independent from Denmark, a NATO-stay guarantee baked into the text rather than contingent on Greenland remaining part of the Kingdom. The U.S. is not reported to have paid Denmark or Greenland anything for the expanded access, and both governments still need parliamentary approval before the agreement can formally enter into force, meaning the signing itself is not the last legal step.