On September 22, 2026, the U.S., Denmark, and Greenland finalized a new security agreement aimed at strengthening the United States’ military presence on Greenland. This development marks a significant step amid longstanding discussions on the future of the Danish territory.

The agreement was signed at the United Nations General Assembly in New York by U.S. President Donald Trump, Greenland Premier Jens-Frederik Nielsen, and Danish Prime Minister Mette Frederiksen. The document reaffirms Greenland’s sovereignty, part of the Kingdom of Denmark, while granting the U.S. extensive access to the island’s airspace and land.

The agreement facilitates the expansion of the U.S. Pituffik Space Base, the northernmost military installation used as an early-warning system for missile threats. It also permits the establishment of additional military bases at locations known as Narsarsuaq and Mestersvig, roughly 950 miles apart. The signatories can propose further ‘defense areas’ as deemed necessary, pending mutual agreement.

The security pact, without an expiration date, prevents non-NATO countries from setting up bases on Greenland unless approved by all parties. It continues in effect even if Greenland gains independence from Denmark. The agreement intensifies scrutiny on foreign investments from nations outside NATO and the EU, aiming to limit influence from China and Russia.

Premier Nielsen and Prime Minister Frederiksen highlighted the deal’s relevance to the evolving security environment in the Arctic. President Trump reiterated his long-standing interest in Greenland, assuring NATO allies of the secure partnership.

Nielsen addressed the significance of the agreement, noting that the security conditions have evolved since a previous accord in 1951. He acknowledged President Trump’s recognition of long-term security challenges.

Frederiksen expressed that the deal honors the ‘territorial integrity of the Kingdom of Denmark’ while respecting Greenland’s self-determination rights.

In his remarks at the U.N. General Assembly, President Trump outlined the U.S. plans to construct new bases, broadening American military capabilities in Greenland. He emphasized that the U.S. would maintain full control over security matters, asserting that no adversary will establish a foothold or make strategic investments in Greenland without U.S. consent.