The United States, Denmark and Greenland are preparing to sign an agreement that could reshape the American military presence in the Arctic and ease a diplomatic dispute that has strained relations within NATO.
US President Donald Trump is due to meet Danish Prime Minister Mette Frederiksen and Greenland Prime Minister Jens Frederik Nielsen in New York on Tuesday for a trilateral signing ceremony. The agreement is expected to allow Washington to expand its military infrastructure on Greenland, a strategically located and mineral rich territory of the Kingdom of Denmark.
The deal follows months of tension after Trump refused to rule out using military or economic pressure to bring Greenland under US control. The comments triggered a diplomatic crisis with Denmark and raised concerns about divisions within NATO.
The US military presence is set to expand
The agreement is expected to give the United States access to two additional military sites in Greenland, alongside the existing Pituffik Space Base.
Stay ahead of the geopolitical week.
MD Briefing delivers expert analysis across five global fronts — the Indo-Pacific, energy, geoeconomics, European security, and the Middle East — every Monday morning. Free.
One of the proposed locations is Narsarsuaq, a former Cold War airbase where only a small population remains. The other is Mestersvig, which is currently used by the Sirius Dog Sled Patrol, an elite Danish special forces unit.
The expansion would significantly increase the US military footprint on the island and mark the first major expansion of American military infrastructure there since the Cold War.
During that period, the United States operated 17 installations in Greenland and had more than 10,000 personnel on the island.
Greenland’s location between North America and the Arctic gives it considerable strategic importance. Its geography also places it close to major Arctic routes and areas of growing competition involving Russia, the United States and other NATO members.
NATO could play a larger role
Danish Foreign Minister Lars Lokke Rasmussen has said the agreement would place Arctic security more firmly within NATO’s collective framework rather than leaving responsibility primarily to Washington and Copenhagen.
That could be significant because the Greenland dispute exposed tensions within the alliance at a time when NATO members are already facing growing security concerns in the Arctic.
The Arctic has become increasingly important to NATO because of its geography, military access and emerging economic opportunities. Greater US military activity in Greenland could therefore become part of a wider alliance approach to Arctic security.
However, the precise role NATO would play remains unclear because the full text of the agreement has not yet been published.
What happens to Greenland’s sovereignty?
The agreement also leaves questions about the balance between US security interests, Danish sovereignty and Greenland’s aspirations for greater autonomy.
Greenland is a self governing territory within the Kingdom of Denmark. Its government has repeatedly maintained that decisions about Greenland’s future must involve Greenlanders themselves.
Trump said on Friday that the agreement would give the United States “permanent control over security, and all other needs, in Greenland.”
Denmark has not endorsed that description. Copenhagen has instead said that the agreement respects the kingdom’s sovereignty and Greenland’s right to self determination.
It remains unclear whether the agreement will modify the 1951 US Denmark defence treaty, which has provided the legal basis for America’s military presence on the island, or establish a separate framework.
From acquisition ambitions to military access
The agreement represents a significant shift from Trump’s earlier push to acquire Greenland outright.
Greenland is roughly three times the size of Texas but has a population of only about 57,000 people, concentrated in small communities along its coastline. The island is also rich in natural resources, adding an economic dimension to its strategic importance.
Trump’s earlier comments about potentially using economic or military pressure to obtain Greenland created an unusual dispute between the United States and Denmark, both members of NATO.
The new agreement appears to offer a different approach: rather than changing Greenland’s sovereignty, Washington would gain a substantially larger military presence on the island.
Why does Greenland matter to the US?
Greenland’s strategic location makes it important to North American and Arctic defence. It sits between the United States, Europe and the Arctic and can provide access for monitoring activity across the region.
For Washington, expanding military infrastructure could strengthen its ability to monitor Arctic air and maritime activity and support wider North American defence.
For Denmark and Greenland, however, the issue involves more than military strategy. Any expansion of US activity has to operate within Denmark’s sovereignty over the territory and Greenland’s right to determine its political future.
The agreement therefore seeks to address two competing pressures at once: the United States’ desire for greater Arctic security access and Denmark and Greenland’s insistence that such cooperation must not amount to a transfer of sovereignty.
If signed as expected, the deal could mark a new phase in the Arctic relationship between the three governments. It would not resolve every disagreement over Greenland’s future, but it could replace the earlier confrontation over US acquisition with a more structured framework for American military access and NATO security cooperation.
With information from Reuters.
