Denmark, Greenland, and the United States are set to formalize a security agreement concerning Greenland, with the signing expected to take place at the United Nations General Assembly in New York. Officials say the accord is designed to place Arctic security under the broader auspices of NATO rather than leaving it solely to the United States and Denmark.

The details of the agreement have not been publicly disclosed. However, U.S. President Donald Trump has described the pact as granting the United States "permanent control" over Greenland’s security. Denmark and Greenland have refrained from confirming this characterization, emphasizing instead that the deal respects Greenland’s sovereignty and is intended to benefit the Arctic territory.

The agreement follows months of intense diplomatic pressure from the Trump administration, which at one point suggested the possibility of purchasing Greenland or employing military or economic means to assert control over the semi-autonomous Danish territory. Those proposals raised tensions within NATO and prompted Copenhagen and Nuuk to enter negotiations aimed at de-escalating the situation.

Danish Foreign Minister Lars Lokke Rasmussen underscored that security responsibility in the Arctic would no longer be a matter exclusively between Denmark and the United States. Speaking to Denmark’s TV2, he noted the intention for NATO to take on a larger security role in the region. It remains unclear if the arrangement will modify the 1951 defense agreement that currently governs U.S. military activities in Greenland.

Analysts suggest the new arrangement seeks to reinforce NATO’s unity through the Arctic. Ulrik Pram Gad, a researcher at the Danish Institute for International Studies, commented that the crisis has become an opportunity to strengthen NATO’s cohesion with regard to Greenland and Arctic security.

The United States’ strategic interest in Greenland has longstanding roots dating back to World War II, when Washington secured rights to establish military installations on the island as part of its efforts to keep Greenland from falling under German control and to maintain the North Atlantic supply route. In 1946, President Harry Truman proposed purchasing Greenland for $100 million in gold, but Denmark declined. Instead, the 1951 agreement granted the United States extensive military rights connected to NATO membership.

At the height of the Cold War, the U.S. maintained numerous bases and over 10,000 personnel in Greenland; today, its presence is limited mostly to the Pituffik Space Base, staffed by around 150 military personnel. NATO has welcomed the new agreement, stating it will promote security, stability, and cooperation in the Arctic region.

Lokke Rasmussen, en route to New York, declined to discuss specifics but reiterated Denmark’s willingness to accommodate U.S. security interests. Meanwhile, Denmark has acknowledged underinvestment in Greenland’s defense infrastructure and has committed to expanding its military presence on the island, including increasing NATO troop deployments.

Greenland’s government has sought to reassure its population, emphasizing that the agreement will uphold the island’s autonomy while addressing increasing geopolitical competition in the Arctic.