By Aaron Miller-
The United States and Denmark have reached an agreement on Greenland’s security, potentially bringing an end to months of diplomatic tension after President Donald Trump repeatedly threatened to take control of the strategically important Arctic territory.
Trump announced the agreement on Friday, claiming it would give the United States “permanent control” over security and other security-related needs in Greenland. The announcement represents a significant shift from Trump’s earlier demands for the United States to acquire or seize the semi-autonomous Danish territory, but the full terms of the agreement have not yet bee
In a post on Truth Social, Trump said the agreement would give Washington the ability to “do what is necessary” to secure and defend Greenland and the United States. He also said the deal would prevent American adversaries from establishing military bases, maintaining a military presence or making sensitive investments in Greenland without US approval.
Trump described the agreement as addressing all of Washington’s national security concerns and said it would come at “no cost to the United States”. He also said the US would immediately begin planning for a larger military presence in Greenland.
The announcement follows months of pressure from Trump, who has repeatedly argued that Greenland is vital to US national security because of its location in the Arctic, its proximity to North America and its potential vulnerability to Russia and China. The territory also possesses substantial deposits of rare-earth minerals that are considered important to modern technologies, including electric vehicles, electronics and defence systems.
Trump’s previous demands that the United States should acquire Greenland triggered a major diplomatic backlash in Denmark, Greenland and across Europe. His threats to use force, if necessary, raised particular concern because Denmark is a NATO member and Greenland remains part of the Kingdom of Denmark, although it has extensive self-government.
The new agreement appears to offer a different route. Rather than transferring sovereignty over Greenland to the United States, the proposed arrangement would expand America’s military and security role while formally recognising the sovereignty of the Kingdom of Denmark and the right of the Greenlandic people to determine their ow
Danish Prime Minister Mette Frederiksen welcomed the development, saying she was pleased that there was now the prospect of a “good agreement” involving Greenland, Denmark and the United States. In a joint statement with Greenland’s Prime Minister Jens-Frederik Nielsen, Frederiksen said the agreement would strengthen security in the Arctic and North Atlantic while recognising the sovereignty and territorial integrity of the Kingdom of Denmark and Greenland’s right to self-determination
Nielsen also welcomed the agreement, saying it would strengthen the security of Greenland, Denmark, the United States and the wider Western alliance. He said the arrangement recognised Greenland’s interests and its position in international cooperation and described it as being “to the benefit o
However, the agreement is not yet fully in force. Denmark and Greenland said it is expected to be formally signed during the United Nations General Assembly in New York next week and will then have to go through the necessary parliamentary procedures before it can take e
The lack of a publicly released text means important questions remain about exactly what Washington, Copenhagen and Nuuk have agreed. Trump has presented the deal as giving the United States permanent authority over Greenland’s security, but Danish and Greenlandic statements have placed greater emphasis on sovereignty, territorial integrity and self-determination.
An unnamed US State Department official has provided additional details about the proposed arrangement, saying it would allow the United States to maintain permanent access, basing and overflight rights and to construct additional military facilities without requiring separate approval from Denmark or Greenland.
The official also said the agreement would prevent non-NATO countries from establishing military bases in Greenland and restrict investments by American adversaries.
According to the US account, the agreement would remain in place even if Greenland eventually became an independent country. That provision is significant because Greenland has a recognised right to pursue independence from Denmark, meaning any long-term American security arrangement could potentially outlast the island’s current constitutional relationship with Copenhagen.
The United States already maintains a strategic military installation at Pituffik Space Base in north-western Greenland. The base plays a role in missile warning, missile defence and space surveillance, giving Washington an established military foothold in one of the world’s most strategically important Arctic loca
The proposed agreement would therefore build on an existing American military presence rather than creating one from scratch. The United States has also had broad military rights in Greenland under a 1951 agreement with Denmark, raising questions about how much the new arrangement would expand Washington’s existing au
Trump has linked Greenland’s strategic importance to his wider plans for US missile defence, including his proposed “Golden Dome” system intended to protect the United States against missile threats. He has also repeatedly highlighted the island’s mineral resources and its location between North America and Europe.
The agreement is being presented as a major national security achievement. US Secretary of State Marco Rubio called it a “historic deal” and said it would permanently address American security concerns in Greenland. NATO also welcomed the agreement, saying it could help advance security, stability and cooperation in the Arctic and North Atlantic region.
The agreement could also provide a diplomatic off-ramp from one of the most serious disputes between the United States and its European allies in recent years. Trump’s repeated calls for American control of Greenland had strained relations with Denmark and unsettled other NATO members, who faced the prospect of a dispute between two members of the same military alliance over territory in the Arctic.
For Greenland, however, the significance of the agreement will depend heavily on its final wording and how the proposed expansion of the US military presence affects the territory’s population and political aspirations. Greenlanders have previously demonstrated against Trump’s plans, including protests outside the US consulate in Nuuk.
The central question now is whether the agreement can balance Washington’s demand for greater security access with Denmark and Greenland’s insistence that their sovereignty and right to self-determination remain intact. Until the full text is released and the agreement passes the required parliamentary procedures, the precise extent of America’s new powers in Greenland remains uncertain.
What is clear is that the dispute has moved from Trump’s earlier threats to acquire Greenland towards a negotiated security arrangement that would deepen the US military role on the island without transferring its sovereignty.
The forthcoming signing at the United Nations and the subsequent parliamentary process are likely to determine whether the agreement becomes the long-term framework for US, Danish and Greenlandic security cooperation in the Arctic.



