US President Donald Trump signed a trilateral security agreement with Denmark and Greenland on Tuesday, significantly expanding American military capabilities in the Arctic region. The deal was finalized on the sidelines of the United Nations General Assembly, with Trump, Danish Prime Minister Mette Frederiksen, and Greenlandic Premier Jens-Frederik Nielsen present for the signing.
The agreement allows for the reestablishment of two military bases: one in Narsarsuaq in southern Greenland and another on the eastern coast in Mestersvig. During his address at the UN, Trump announced that the United States would “immediately begin the process of developing a significant military presence” in these locations.
Trump described the pact as “tremendous” for both Europe and the US, adding that it would be “incredible” for Greenland. The text of the deal, released by the White House shortly after the ceremony, also permits the modernization and expansion of activities at the existing Space Force base.
While the agreement reaffirms the sovereignty and territorial integrity of Denmark and Greenland, it grants the US broad freedom of movement within Greenland and its territorial waters. Crucially, it restricts non-NATO nations from establishing military facilities or maintaining a permanent military presence on the island without the consent of the signatories.
The signing follows months of diplomatic pressure from Trump, who has long advocated for US control over the resource-rich Danish territory. Behind the scenes, officials from the US, Denmark, and Greenland worked to address American security concerns while navigating tensions that had previously unsettled Greenlanders and strained relations with the European Union.
Greenland’s Prime Minister Nielsen characterized the deal as a “win-win arrangement.” The legal framework was bolstered last year when the Danish Parliament approved legislation permitting US military bases on Danish soil, expanding upon a 2023 agreement with the Biden administration that granted US forces broad access to air bases in Denmark.
NATO Secretary General Mark Rutte welcomed the development via social media, stating that the agreement enhances collective security and supports a stable future for the vital Arctic region. The deal marks a notable reversal in US military posture in Greenland, where personnel numbers have declined from thousands across 17 installations to approximately 200 at the Pituffik Space Base in the northwest since 1945.
Interesting that the deal explicitly restricts non-NATO military presence there. Isn’t that essentially locking out China from the Arctic strategically?
I never thought I’d see permanent US bases in Greenland again. The sovereignty guarantees seem solid, but it is a massive change for such a remote place.
This shifts the geopolitical balance significantly. Russia and China will definitely take notice of this expanded US footprint right in their backyard.