2026 US–Denmark–Greenland agreement

The 2026 United States–Denmark–Greenland agreement (also called the Greenland security deal) is a trilateral defence agreement between the United States and the Kingdom of Denmark together with Greenland, an autonomous territory of Denmark. It was signed on 22 September 2026 by US President Donald Trump, Danish Prime Minister Mette Frederiksen and Greenlandic Prime Minister Jens-Frederik Nielsen, at the United Nations Headquarters in New York City. It amends and supplements the existing 1951 Greenland Defense Agreement and its subsequent arrangements, expanding and clarifying the framework for the United States military presence in Greenland.

The agreement authorizes the United States to modernize and expand Pituffik Space Base and provides for additional American defence areas at Narsarsuaq and Mestersvig, while establishing a procedure for further defence areas. It also provides for accelerated consideration of unmanned military installations, broad American rights of military access, overflight and movement, including undersea movement in Greenlandic territorial waters, and measures concerning counter-espionage, sensitive foreign investment and the military presence of non-NATO states. The agreement supports an increased NATO role in the Arctic and contains provisions intended to preserve the defence arrangements if Greenland becomes independent.

The accord followed more than eight months of negotiations and a major diplomatic crisis over President Trump's demands for greater American control of Greenland, including repeated threats of annexing the territory by force. It was drafted and negotiated by a high-level working group of civil servants from all three countries, established following a meeting in Washington D.C. in January 2026 between Danish Foreign Minister Lars Løkke Rasmussen, Greenlandic minister of foreign affairs Vivian Motzfeldt, US Secretary of State Marco Rubio and US Vice President JD Vance, during the height of the crisis. In the final agreement, the US reaffirms the sovereignty and territorial integrity of the Kingdom of Denmark, as well as the right to self-determination of the people of Greenland.

It is expected to enter into force, when it has been ratified by both the Folketing (parliament of Denmark) and Inatsisartut (parliament of Greenland), and the United States receives a diplomatic note confirming this. Legally considered an executive agreement of the United States, it does not require ratification by two-thirds of the Senate, as otherwise stipulated by the Treaty Clause of the US Constitution.

Background

1951 Greenland Defense Agreement

Negotiation and signing

Provisions The agreement amends the 1951 Defense Agreement and later Defense Arrangements, including the 2004 Igaliku Agreement. Britain's House of Commons Library describes the agreement as an update of the 1951 one, as much of that original agreement's core substance remains, with the new 2026 agreement only supplementing and replacing a few sections. The agreement has no stated end date and may be amended only by mutual consent of all parties, under Article XIII of the original 1951 agreement. The Centre for Eastern Studies wrote that the text largely upholds the previous status quo and the pre-existing trilateral cooperation in the context of NATO.

The preamble respects and reaffirms the self-determination of the people of Greenland as a people under international law with the right to self-determination and the sovereignty and territorial integrity of the Kingdom of Denmark. Also noted is the procedure for Greenlandic independence is set in Article 21 of the Act on Greenland Self-Government. After the signing of the agreement, Denmark Prime Minister Mette Frederiksen said that the agreement respects and acknowledges both Greenlandic and Danish rights, sovereignty, and territorial integrity. Reuters and others note that the accord does not fulfill President Trump's stated intention to annex Greenland as a US territory.

Defense areas and access Per Article IV, the US is permitted to expand its operations at the Pituffik Space Base and to establish an additional "Defense Area" at Narsarsuaq and Mestersvig, with certain details to be mutually agreed upon at a later date. Either party may propose further Defense Areas. The US is required to preferentially award commercial contracts for the building and maintenance of these Defense Areas to Greenlandic firms to the fullest extent reasonably possible. Article V outlines a process for accelerated review of requests to construct unmanned military installations outside Defense Areas.

Reactions

Greenland and Denmark

United States

NATO allies

Implementation Article XII makes entry into force dependent on completion of the necessary parliamentary procedures in Denmark and Greenland followed by a diplomatic note to the United States. Danish foreign minister Lars Løkke Rasmussen informed the Folketing on 22 September that the agreement would therefore have to be considered by both the Folketing and Inatsisartut.

2026 US–Denmark–Greenland agreement

Bron en licentie