US Expands Military Presence in Greenland With Two Additional Bases Under Trump Deal
The United States is expanding its military presence in Greenland with two additional bases under the new security agreement signed Tuesday by President Trump, Denmark and Greenland, marking the largest expansion of the American military footprint on the Arctic island since the Cold War.
The agreement calls for the United States to reestablish a military presence at Narsarsuaq in southern Greenland, where American forces operated a major air base during World War II and the Cold War. The United States will also establish a presence at Mestersvig on Greenland’s east coast, an existing outpost used by Denmark’s elite Sirius Dog Sled Patrol.
President Trump signed the agreement alongside Danish Prime Minister Mette Frederiksen and Greenland Prime Minister Jens-Frederik Nielsen on the sidelines of the United Nations General Assembly in New York. The pact follows months of negotiations over the future of American military operations in the strategically important Arctic territory.
The United States already operates Pituffik Space Base in northwestern Greenland. The installation plays an important role in missile warning, missile defense and space surveillance, and the new agreement allows for upgrades to that facility alongside the additional American military sites.
Narsarsuaq has a long history with the U.S. military. American forces established the installation during World War II as a crucial stop for aircraft traveling between North America and Europe, and the base remained part of the American military network in Greenland during the early Cold War.
At the height of the Cold War, the United States operated as many as 17 military installations across Greenland. Most were eventually abandoned or transferred as the Cold War ended, leaving Pituffik as America’s primary permanent military installation on the island.
The new agreement also establishes restrictions intended to prevent countries outside NATO from establishing a military presence in Greenland without approval. The provision addresses longstanding American concerns about growing Russian and Chinese strategic interest in the Arctic.
Despite the expanded American military role, the agreement does not transfer sovereignty over Greenland to the United States. Greenland remains a self-governing territory within the Kingdom of Denmark, and the agreement explicitly recognizes Greenlanders’ right to self-determination.
The arrangement also places Greenland’s defense more firmly within NATO’s broader Arctic security strategy. Danish officials have emphasized that responsibility for defending the region will be shared through the alliance rather than transferred entirely to Washington.
The deal represents a major expansion of American military access to Greenland while resolving months of tensions between Washington, Copenhagen and Nuuk. With Pituffik joined by expanded operations at Narsarsuaq and Mestersvig, the United States will have a significantly larger military footprint across the strategically important Arctic island.