US, Denmark, Greenland reach Arctic military agreement ahead of UN signing

The United States, Denmark, and Greenland announced on Friday that they have reached a security agreement to expand the American military presence in the Arctic territory while preserving Greenland's sovereignty. The deal responds to U.S. security concerns about the strategically important and mineral-rich island, and is expected to be formally signed during the UN General Assembly in the coming week.

Under the agreement, the U.S. will gain what President Trump described as "permanent control over security, and all other needs, in Greenland." The pact prohibits non-NATO military bases in Greenland and restricts adversaries—including China and Russia—from making strategic investments or establishing bases on the island. A State Department official confirmed these restrictions, though most details of the agreement remain undisclosed. Experts note the U.S. maintained significant military presence in Greenland during the Cold War, including nuclear-armed bombers and early-warning systems, before reducing its footprint. The U.S. currently operates Pituffik Space Base in northwestern Greenland for missile warning, missile defense, and space surveillance operations.

Denmark's government and Greenland's leadership expressed cautious optimism about the deal. Greenland's Prime Minister Jens-Frederik Nielsen stated that "the agreement recognizes the sovereignty and territorial integrity of our kingdom and the right of the Greenlandic people to self-determination." Denmark's Foreign Minister Lars Løkke Rasmussen emphasized that the accord would "strengthen security in the Arctic and the North Atlantic" while respecting "the Danish kingdom's red lines." Both governments stressed that Greenlandic sovereignty and self-determination remain intact, directly contradicting Trump's language of American "permanent control."

The agreement also addresses potential U.S. investment in Greenland's mining, infrastructure, and tourism sectors. Experts identify substantial obstacles to development, including limited transportation infrastructure, a small workforce of approximately 56,000 residents, and high Arctic development costs. Former U.S. diplomat Lewis Lukens noted that while Greenland welcomes investment, these practical barriers pose formidable challenges.

The deal emerges after months of confidential negotiations following Trump's earlier threats to acquire or gain control over Greenland. Political science professor Mikkel Vedby Rasmussen warned that the agreement may not conclude Trump's strategic ambitions for the territory, and questioned whether increased U.S. influence could shift Greenland's historical relationship from Danish to American control. NATO welcomed the accord as advancing security in the vital Arctic region. Parliamentary approval in both Denmark and Greenland is required before the agreement becomes enforceable.