The United States, Denmark, and Greenland have signed a new security agreement that expands U.S. military access to Greenland while reinforcing Danish sovereignty over the Arctic territory. The deal, finalized on Tuesday at the UN General Assembly in New York, includes plans to reopen a former Cold War-era base in Narsarsuaq and establish a new presence at Mestersvig, currently used by Denmark’s Sirius Dog Sled Patrol.
The agreement, first reported by Channel News Asia, was signed at 2:30 PM GMT (10:30 PM Singapore time) and follows months of negotiations. While the full text has not been publicly released, sources familiar with the deal confirmed its key provisions. The U.S. will gain expanded military access to Greenland, while Denmark and Greenland retain formal sovereignty over the territory.
Denmark and Greenland have framed the pact as a step toward strengthening Arctic security without compromising Greenland’s right to self-determination. Danish Prime Minister Mette Frederiksen stated the agreement recognizes the sovereignty and territorial integrity of the Kingdom of Denmark and Greenland’s right to self-determination. A U.S. State Department official, cited by CS Monitor, said the deal ensures China and Russia cannot establish military bases or send troops to Greenland, with mechanisms to block investments in sensitive sectors like minerals.
U.S. military expansion in Greenland
The U.S. currently operates Pituffik Space Base (formerly Thule Air Base) in northern Greenland, now managed by the U.S. Space Force. The new agreement will add two additional bases:
- Narsarsuaq (southern Greenland): A former U.S. Cold War base closed in the 1950s, now home to a dwindling population of a few dozen residents.
- Mestersvig (eastern Greenland): A Danish military outpost used by the Sirius Dog Sled Patrol, a special forces unit.
The deal updates a 1951 NATO pact between Greenland and the U.S., granting Washington new assurances for an expanded role while maintaining Greenland’s semiautonomous status within Denmark. The agreement also includes provisions to remain in effect even if Greenland pursues full independence, according to CS Monitor.
Economic and strategic implications
The pact has triggered a surge in U.S.-listed Greenland-exposed stocks, with shares of Greenland Energy (+150%), Greenland Mines (+80%), and Critical Metals Corp (+25%) rising sharply during premarket trading on Monday, as reported by CNBC. The deal comes amid rising global demand for critical minerals and energy security, particularly as conflicts in Ukraine and the Strait of Hormuz disrupt supply chains.
Perspectives on the agreement
- U.S. framing: The White House has emphasized the pact as a strategic victory, securing U.S. influence in the Arctic and limiting adversarial access to Greenland. Fox News highlighted President Trump’s long-standing interest in Greenland, citing its mineral wealth and strategic location as key factors.
- Danish/Greenlandic framing: Denmark and Greenland have stressed that the agreement preserves sovereignty and self-determination. Prime Minister Frederiksen’s remarks underscore that the deal does not alter Greenland’s status within the Danish realm.
- Criticism and analysis: A Channel News Asia commentary noted that while the agreement avoids immediate NATO ruptures, it may normalize a sphere-of-influence dynamic, where smaller states face pressure to accept strategic subordination despite nominal sovereignty.
What remains unclear
The full text of the agreement has not been made public, and key details—such as the scope of U.S. military operations and specific restrictions on foreign investment—have not been disclosed. The governments of Denmark, Greenland, and the U.S. did not immediately respond to requests for comment on unresolved provisions.