Donald Trump has declared that the United States has secured “permanent control” over Greenland’s security through a new agreement with Denmark and the autonomous territory.
The 80-year-old president announced the claimed deal Friday in a post on Truth Social, framing it as an open-ended pact with no expiration that would enable a major American military expansion on the strategically vital Arctic island.
“The United States has entered into an Agreement with Denmark and Greenland, which gives the United States permanent control over security, and all other needs, in Greenland, completely addressing ALL of our many U.S. Concerns,” Trump wrote.
He described the arrangement as an “‘Infinite Life’ Agreement, there is no end!” and pledged that “We will immediately begin the process of developing a large Military presence in the appropriate part of Greenland, of which there are many.”
Trump’s post also carried a sharp warning aimed at Washington’s global rivals. “No U.S. Adversary can EVER have a base in Greenland, have a military presence in Greenland, or make sensitive investments in Greenland, without our express written approval,” he stated.
Danish Prime Minister Mette Frederiksen offered a notably different characterization of the pending arrangement. In a statement, she said both Denmark and Greenland expect to sign an agreement with the US next week to strengthen security in the Arctic and the North Atlantic region.
“I am glad that we are about to make a great agreement for Greenland, the Kingdom of Denmark and the United States,” Frederiksen said. “An Agreement which strengthens our common security in the Arctic and North Atlantic Area and therefore is great for NATO and Europe as well. And an agreement which at the same time recognises the sovereignty and territorial integrity of the Kingdom and Greenlandic people’s right to self-determination.”
Greenland’s own leadership struck a similarly cooperative but sovereignty-conscious tone. Chairman of the Naalakkersuisut Jens-Frederik Nielsen commented that “It is joyous that we are about to make an agreement that will ensure and strengthen the security of Greenland, the Kingdom of Denmark, the United States, and the Western Alliance.”
Nielsen added that “The agreement recognises Greenland’s interests and our place in the international cooperation. It is to the benefit of us all.”
Neither Frederiksen’s statement nor Nielsen’s comments confirmed Trump’s specific claims about “permanent control” or an “infinite life” pact, and Danish officials did not immediately release details outlining their interpretation of the arrangement described by the American president.
The announcement caps years of Trump’s fixation on the mineral-rich Danish territory. During his first term in 2019, he publicly floated purchasing Greenland outright, a proposal that Frederiksen firmly rejected at the time. After returning to office, he escalated his rhetoric, repeatedly warning that Denmark lacked the defense capability to protect the island from foreign powers and refusing to rule out economic or strategic pressure to secure American oversight.
The United States already maintains a significant footprint on the island through Pituffik Space Base, formerly known as Thule Air Base, in northwest Greenland. The installation plays a vital role in US missile defense and space surveillance networks, making the territory’s security architecture already heavily tilted toward American interests before any new agreement.
Trump’s emphasis on blocking Russian and Chinese influence reflects intensifying great-power competition in the Arctic, where melting ice has opened new shipping lanes and access to untapped resources. Greenland’s location between North America and Europe, combined with its deposits of rare earth minerals, has made it an increasingly urgent focus of geopolitical attention.
The gap between Trump’s expansive claims and the more cautious statements from Copenhagen and Nuuk leaves significant uncertainty about what has actually been agreed to, with formal signing expected next week.