Trump says the US now has permanent control of Greenland's security
The president says Denmark and Greenland have agreed to give Washington permanent security control and that a military build-up starts at once. Copenhagen and Nuuk have not set out their own version.
Donald Trump said on 18 September that the United States has reached an agreement with Denmark and Greenland giving Washington permanent control over security in Greenland, and that a US military presence on the island will begin to be built immediately.
"At my direction, we worked with representatives of Denmark and Greenland to guarantee that the United States will forever have the complete ability to do what is necessary in Greenland," Trump said. He described the security arrangement as costing the United States nothing.
What has not been published is the text. Denmark and Greenland had not set out their own account of the terms as of the time of writing, and reporting in the United States has noted that the announced deal stops short of the transfer of control Trump has repeatedly demanded. Greenland remains a self-governing territory of the Kingdom of Denmark. Treat the characterisation as Trump's until the document or a Danish statement lands.
Why a Pakistani reader should care
Three reasons, and none of them is Arctic weather.
It sets a precedent on sovereignty. A large power obtaining permanent security control over a smaller partner's territory, by agreement rather than force, is a template. Pakistan's own security arrangements, including the commitment to Saudi Arabia under the Makkah pact, sit in the same category of agreements whose text matters more than the announcement.
It is about minerals. Greenland holds significant rare earth and critical mineral deposits, and control of security is the precondition for controlling extraction. The same logic drives external interest in Balochistan's copper and gold, where Reko Diq is the largest project in the country.
It moves markets that move your bills. Trump's foreign policy has been the main driver of the oil price through this year, and Brent at $104 is why petrol is at Rs 389.14 in Pakistan rather than Rs 300. Any move that is read as US expansion adds a risk premium to energy. Our petrol price page tracks what that translates to at the pump.
The background
Trump has pressed for American control of Greenland since returning to office, at times declining to rule out force, which produced a sustained diplomatic crisis with Copenhagen. Denmark has consistently said Greenland is not for sale and that its future is for Greenlanders to decide.
Greenland has about 57,000 people and sits on the shortest missile route between North America and Russia, which is why the United States has had a presence at Pituffik, formerly Thule, since the 1950s. An expanded presence is a change of scale rather than a change of kind.
What to watch next
- A Danish government statement setting out what was actually signed, and whether the Folketing has to ratify it.
- Greenland's own parliament, the Inatsisartut, whose consent is the political test.
- Whether "permanent" appears in the text. Basing agreements normally carry review periods. A treaty without one would be unusual.
Until those arrive, one side has described the deal and the other two have not.
Frequently asked questions
- Has the United States bought Greenland?
- No. Trump announced a security agreement, not a transfer of sovereignty. Greenland remains a self-governing territory of the Kingdom of Denmark, and neither Copenhagen nor Nuuk had published its own account of the terms at the time of writing.
Sources
- Trump says U.S. to build a 'large Military presence' in Greenland as part of a security deal with it and Denmark (18 Sep 2026): CNBC
- Trump claims Denmark agrees to give U.S. 'permanent control' over Greenland security (18 Sep 2026): CP24
- Trump announces deal over Greenland that stops short of US control (18 Sep 2026): The Washington Post
- Trump announces 'infinite life' Greenland deal granting US permanent security control: The Jerusalem Post
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