Trump announces ‘permanent’ US security control over Greenland after months of annexation threats

Denmark and Greenland say the deal strengthens Arctic security while recognizing the kingdom’s sovereignty and Greenlanders’ right to self-determination
Donald Trump took to Truth Social on Friday, September 18, to announce that the US, Denmark, and Greenland had reached a deal on Arctic security (AP Photos/ Getty Images)
Donald Trump took to Truth Social on Friday, September 18, to announce that the US, Denmark, and Greenland had reached a deal on Arctic security (AP Photos/ Getty Images)

WASHINGTON, DC: President Donald Trump on Friday, September 18, announced a first-of-its-kind security agreement with Denmark and Greenland that allegedly allows the United States “permanent control over security, and all other needs” on the Arctic island.

This follows months of threats by Trump to acquire Greenland, including his earlier refusal to rule out military action to take control of the territory. Denmark and Greenland confirmed that an agreement is expected to be signed next week, while emphasizing that it preserves Danish sovereignty and Greenland’s right to self-determination.

Trump says deal gives US permanent security authority in Greenland

Trump announced the agreement in a post on Truth Social stating that the deal would permanently address US national security concerns in Greenland and prevent American adversaries from establishing a military foothold there.



“I am pleased to announce that the United States of America has entered into an Agreement with The Kingdom of Denmark, and Greenland," the 80-year-old wrote, "that gives the United States permanent control over security, and all other needs, in Greenland, completely addressing all of our many US concerns.”

Trump said the agreement comes at “no cost” to the US and described it as an “Infinite Life’ Agreement, there is no end!”

The president said the arrangement would prevent any US adversary from establishing a base or military presence on Greenland or making sensitive investments there without written approval from the US.

A State Department official said the agreement would prohibit non-NATO military bases and include screening mechanisms intended to prevent Russia, China, and other adversaries from making investments that could potentially threaten the US security in the future.

Trump also said the US would begin developing a larger military presence on Greenland. “United States will forever have the complete ability to do what is necessary in Greenland in order to secure and defend the security of Greenland, and the United States of America,” he wrote.

WASHINGTON, DC - AUGUST 07: U.S. Secretary of State Marco Rubio (R) listens as U.S. President Donald Trump speaks during a roundtable on the American mining industry at the U.S. Department of State on August 07, 2026 in Washington, DC. Trump attended the event as his administration aims to secure additional supplies of critical minerals in an effort to replenish weapons stockpiles that have been depleted during the U.S. conflict with Iran.  (Photo by Eric Lee/Getty Images)
Secretary of State Marco Rubio listens as President Donald Trump speaks during a roundtable on the American mining industry at the US Department of State on August 7, 2026, in Washington, DC (Eric Lee/Getty Images)

Secretary of State Marco Rubio also described the agreement as addressing Washington’s security concerns. “Greenland will forever be part of the strategic defense area of North America and exclude any adversary from it and the surrounding area,” he said. 

Denmark, Greenland stress sovereignty as deal follows annexation threats

Danish Prime Minister Mette Frederiksen said that the agreement would strengthen security in the Arctic and North Atlantic while maintaining the existing political status of Greenland.

“An agreement that strengthens our common security in the Arctic and the North Atlantic area and is therefore also good for NATO and Europe. And an agreement that at the same time recognizes the Kingdom’s sovereignty and territorial integrity and the Greenlandic people’s right to self-determination,” Frederiksen said.



Frederiksen’s government said that the three parties expect to sign the agreement during next week’s United Nations General Assembly in New York. The deal will still have to go through the necessary parliamentary procedures before it enters into force.

BERLIN, GERMANY - JULY 11: New Danish Prime Minister Mette Frederiksen speaks during a joint press c
Danish Prime Minister Mette Frederiksen speaks during a joint press conference with German Chancellor Angela Merkel (not pictured) at the Chancellery on July 11, 2019, in Berlin, Germany (Omer Messinger/Getty Images)

The chairman of the Greenland government, Jens-Frederik Nielsen, said that the arrangement would strengthen security while recognizing Greenland’s interests. “It is gratifying that we are about to enter into an agreement that recognizes Greenland’s interests and our place in international cooperation,” Nielsen said. “It is for the benefit of us all.”

NUUK, GREENLAND - MARCH 28: Jens-Frederik Nielsen (C), the leader of the Demokraatit party and the next Prime Minister of Greenland speaks with journalists following the announcement of a coalition agreement to form the next government, on March 28, 2025 in Nuuk, Greenland. Four of the five political parties in Greenland's parliament announced a coalition agreement today following the March 11 election. The announcement coincides with a visit by US Vice President JD Vance to a remote American military base in the northern part of the country. The itinerary for that visit was scaled back after initial, more extensive plans drew the ire of Greenlandic leaders, who have been angered by President Trump's vow to gain control of Greenland
Premier of Greenland Jens-Frederik Nielsen speaks with journalists following the announcement of a coalition agreement to form the next government on March 28, 2025, in Nuuk, Greenland. (Leon Neal/Getty Images)

The agreement follows months of tensions after Trump repeatedly argued that Greenland was strategically important to US national security because of its location, mineral resources, and the possibility of Russian or Chinese activity in the Arctic. Trump previously said the United States could take Greenland “one way or the other” and had declined to rule out military action. 

RELATED TOPICS US GREENLAND RELATIONS AND ARCTIC SECURITY

GET BREAKING U.S. NEWS & POLITICAL UPDATES
STRAIGHT TO YOUR INBOX.

MORE STORIES

The claim comes days after Trump said he had 'no idea' who Kremlev was and had 'never heard of him'
25 minutes ago
President Trump announced restrictions on three media outlets after separately posting about his standing among Republicans
4 hours ago
Vice President JD Vance made the remarks while targeting Democratic candidates at a midterm rally in Iowa
5 hours ago
'So I heard in the state of Michigan they have outlawed patchy beards. Get in, patriots. We're going to arrest Abdul El-Sayed', JD Vance said
7 hours ago
Mitch McConnell voted on a college sports bill on Thursday but did not cast two later votes
7 hours ago
Former Anthropic researcher Jacob Coxon warned AI could 'kill us all', while Trump dismissed the warning as a 'hoax'
7 hours ago
The US reportedly obtained evidence that Iran used satellite images from Chinese entities in the July attack on a military base
8 hours ago
President Trump's latest Truth Social post takes aim at the network after weeks of clashes with its White House reporters
9 hours ago
Hasan Piker traveled to China last year and said its government came closest to the form he wanted to see adopted in the US
9 hours ago
It was reported that the Pentagon had republished testosterone screening guidance for male service members aged 30 and older
11 hours ago