President Donald Trump says the United States has secured permanent security rights in Greenland and can begin building a larger military presence there. But the agreement does not give the United States ownership of the Arctic island—and it is not yet in force.
The emerging pact between the United States, Denmark and Greenland would expand American military access, bar non-NATO countries from establishing bases and restrict adversaries from making sensitive investments on the island. Denmark and Greenland, meanwhile, retain sovereignty and the right to self-determination, according to statements summarized by The Associated Press and Reuters.
The deal is expected to be signed during the United Nations General Assembly in New York next week. Parliamentary action in Denmark and Greenland would still be required before it can be enforced.
What Trump says the United States is getting
Trump announced the agreement Friday, September 18, describing it as a permanent answer to American security concerns in Greenland. He said the United States would immediately begin developing a larger military presence in an appropriate part of the territory.
A State Department official told Reuters that the agreement grants permanent American access, basing and overflight rights. The official said those provisions would remain in effect even if Greenland eventually becomes independent from Denmark.
The pact would also prevent non-NATO nations from building military bases in Greenland. China, Russia and other potential U.S. adversaries would be unable to make certain sensitive investments without American approval.
Secretary of State Marco Rubio said the arrangement places Greenland permanently inside North America’s strategic defense area and resolves Washington’s national-security concerns.
What the deal does not do
The agreement falls well short of Trump’s earlier goal of acquiring Greenland for the United States. Denmark’s government emphasized that the pact recognizes the sovereignty and territorial integrity of the Kingdom of Denmark and protects Greenlanders’ right to decide their own political future.
Greenland Prime Minister Jens-Frederik Nielsen said the agreement recognizes the island’s interests and strengthens security for Greenland, Denmark, the United States and the broader Western alliance.
Those statements matter because Trump spent months arguing that American ownership was necessary and repeatedly declined to rule out using force. Denmark and Greenland consistently responded that the island was not for sale.
The new arrangement appears to replace that territorial confrontation with a security compromise: Washington gains durable military rights and influence over strategic investments, while Copenhagen and Nuuk keep political control of the island.
Many operational details remain unclear
The full text had not been released as of Friday night. It was not immediately clear whether the United States could construct new bases without separate approval from Denmark or Greenland, how many personnel could be deployed, which investments would be classified as sensitive or where new facilities might be located.
Trump characterized the deal as giving the United States permanent control over Greenland’s security needs. Danish and Greenlandic leaders used more limited language, stressing cooperation, sovereignty and collective defense.
That difference means the actual legal text—and the parliamentary process that follows—will be more important than the political descriptions surrounding the announcement.
The United States already has extensive Greenland access
American military involvement on the island is not new. The United States and Denmark signed the Defense of Greenland Treaty in 1951, giving Washington broad basing and overflight rights.
The United States currently operates Pituffik Space Base in northwestern Greenland. The facility supports missile warning, missile defense and space-surveillance operations for both the United States and NATO.
Greenland’s location explains its growing importance. The island sits between North America and Europe, with more than two-thirds of its territory inside the Arctic Circle. It is positioned along potential missile and aircraft routes and near Arctic shipping corridors that could become more accessible as sea ice retreats.
Why the agreement matters now
The pact could reduce one of the most disruptive disputes inside NATO. Trump’s threats to acquire Greenland angered Denmark, unsettled European allies and were widely opposed by Greenlanders.
It also gives the White House a foreign-policy accomplishment to promote before the U.S. midterm elections. For Denmark and Greenland, it offers a way to strengthen Arctic defense without surrendering the sovereignty they repeatedly said was nonnegotiable.
The announcement therefore represents a major shift, but not a transfer of territory. The United States is positioned to gain a larger and potentially permanent military role in Greenland. Denmark still keeps the island, Greenlanders retain their right to self-determination, and the agreement must clear more political steps before any expansion begins.
