The United States, Denmark and Greenland have agreed on a security pact that hands Washington sweeping new military access across the Arctic island, including two additional bases, according to Reuters sources familiar with the arrangement.
President Trump announced on social media that the deal grants the United States “permanent control over security” in Greenland, though the territory remains formally under Danish sovereignty. The agreement is set to be formalized this week on the sidelines of the United Nations General Assembly in New York, though it still needs approval from the Danish and Greenlandic parliaments before it takes effect.
What the new bases will look like
Under the plan, a former Cold War-era installation in southern Greenland will be reopened for American use. On the island’s east coast, a site currently used by Denmark’s dog sled patrol will also host a new US military presence, Reuters reported, citing people briefed on the arrangement.
Those additions would sit alongside Pituffik Space Base, the remote US facility in northwestern Greenland that has operated since the 1951 Defense of Greenland Treaty with Denmark. Pituffik currently supports missile warning, missile defense and space surveillance work for the United States and NATO.
The terms of the pact
The agreement bans non-NATO military installations on Greenland and blocks Chinese and Russian investment or basing on the island, according to NPR. Secretary of State Marco Rubio described it as a deal that “permanently and completely” excludes any rival power from the territory, calling it a “historic” win for US Arctic strategy.
Danish Prime Minister Mette Frederiksen said the pact “recognizes the sovereignty and territorial integrity” of both Denmark and Greenland while preserving the Greenlandic people’s right to self-determination. Greenland’s own prime minister, Jens-Frederik Nielsen, said the arrangement “benefits all three governments” and reflects the territory’s interests, not just Washington’s.
Why Greenland has become so strategically important
Greenland sits off Canada’s northeastern coast, with roughly two-thirds of the island inside the Arctic Circle. It has been central to North American defense planning since World War Two, when US forces occupied the island to keep it out of Nazi hands and to protect Atlantic shipping routes.
That strategic logic has resurfaced as melting sea ice opens new shipping lanes and mineral deposits across the Arctic, drawing interest from both China and Russia. Washington has cast the expanded basing rights as a way to lock out rival powers before those routes and resources become fully accessible.
The deal follows more than a year of friction. Trump first pushed publicly for the United States to acquire Greenland outright, citing security threats from Russia and China that independent fact-checkers found exaggerated at the time. That rhetoric strained relations with Copenhagen and other European capitals even as talks continued behind the scenes.
Imran Bayoumi, an analyst at the Atlantic Council, said the earlier pressure campaign had already done lasting damage. He warned that Americans “really underestimate how damaging” the aggressive posture toward an ally’s territory was for the United States’ standing in Europe, where officials had described the demands as an attack on sovereignty rather than a routine defense negotiation.
A pattern of assertive dealmaking
The Greenland pact lands amid a broader run of high-profile security and economic agreements pursued by the Trump administration this year, from Gulf reconstruction financing tied to the Iran conflict to pressure campaigns over trade and critical minerals. Supporters frame the approach as overdue realism about great-power competition in regions the United States had long treated as settled. Critics, including some NATO allies, say the same instinct that produced results in Greenland has also unsettled partners who worry about being pressured rather than consulted.
For now, the practical test will be parliamentary approval in Copenhagen and Nuuk. Both governments have signaled support, but a formal vote will show whether domestic politics in Denmark and Greenland match the enthusiasm on display in Washington this week.
If ratified, the expanded American footprint would mark one of the most significant shifts in Arctic security arrangements since the Cold War, reshaping how NATO, Russia and China each approach a region increasingly seen as the next arena of great-power rivalry.
