US, Denmark and Greenland reach Arctic security deal after Trump’s annexation threats

President Donald Trump announced on Friday that the US had struck an Arctic security pact with Denmark and Greenland that he described as “very important, historic, and special”. In a post on Truth Social, Trump said the agreement “gives the United States permanent control over security, and all other needs, in Greenland, completely addressing ALL of our many US concerns”. He added that the deal comes “with no cost to the United States” and would allow the US “to do what is necessary” to secure and defend Greenland.

The pact explicitly bans US adversaries—identified as Russia and China—from building bases, maintaining troops, or making sensitive investments in Greenland without express US written approval. The agreement will be signed by the three governments on the sidelines of the United Nations General Assembly in New York next week, according to Danish Prime Minister Mette Frederiksen’s office.

Frederiksen confirmed the deal in a statement, saying it “strengthens our common security in the Arctic and the North Atlantic area” while also “recognising the sovereignty and territorial integrity of the Kingdom and the right of the Greenlandic people to self-determination”. She noted the agreement still requires approval from Danish and Greenlandic legislators before it can enter into force.

Greenland’s Prime Minister, Jens-Frederik Nielsen, said the emerging deal benefits all three governments and “recognises Greenland’s interests and our place in the international cooperation”.

The agreement caps months of tension triggered by Trump’s repeated calls for Denmark to sell the island—which Denmark and Greenland consistently said was not for sale—and his refusal to rule out using military force to acquire it. The situation strained relations with a key NATO ally and drew opposition from Russia and much of Europe. The deal allows Trump to claim a foreign policy achievement ahead of midterm elections, even as his administration remains engaged in a six-month-old conflict with Iran that has undermined his pledge to avoid foreign wars.

Why This Matters

This deal formalises US dominance over Greenland’s security, a strategically vital Arctic territory that sits along key shipping routes and houses rare-earth mineral deposits.
By explicitly banning Chinese and Russian military presence and sensitive investments, the agreement directly counters Beijing’s and Moscow’s growing Arctic ambitions.
The resolution defuses a major diplomatic crisis with a NATO ally (Denmark) that Trump had threatened to coerce, stabilising alliance relations in the region.

Background

Greenland, a semi-autonomous territory of Denmark, has long been of strategic interest to the US because of its location on the shortest air route from North America to Europe and its proximity to Arctic sea lanes. The island also holds substantial reserves of rare-earth minerals critical for technology and defence. Trump first floated the idea of buying Greenland in 2019 during his first term, but revived and escalated the push after returning to the White House in 2025. He refused to rule out military action, drawing sharp rebukes from Copenhagen and Nuuk as well as from European allies. Behind-the-scenes negotiations between US, Danish and Greenlandic officials eventually produced the security agreement announced Friday.

Key Perspectives

[United States (Trump administration)]: The deal secures permanent US control over Greenland’s security and military access without annexation or payment, addresses concerns about Chinese and Russian influence, and gives Trump a victory ahead of midterm elections. [Denmark & Greenland governments]: Both maintain that the agreement preserves Danish and Greenlandic sovereignty and the right to self-determination, while upgrading Arctic security in partnership with the US. The deal still requires parliamentary approval in both countries. [Critics/Skeptics]: Trump’s description of “permanent control” over security may raise sovereignty questions; the lack of publicly available legal text makes it hard to assess whether the deal truly limits Washington’s leverage. Some analysts may argue the ban on Chinese and Russian investments could discourage legitimate economic development in Greenland.

What to Watch

The exact legal text of the agreement, expected to be released before or during the UN signing ceremony next week.
Parliamentary approval processes in Denmark and Greenland, which could face debate over sovereignty guarantees.
Reactions from Beijing and Moscow, which may view the ban on their presence as hostile and could respond with countermeasures in the Arctic.

ZOTPAPER