U.S. Set to Open Two New Military Bases in Greenland Under Major Arctic Security Deal
The United States is preparing to dramatically expand its military footprint in Greenland, with plans to establish a presence at two additional locations on the strategically important Arctic island under a new security agreement with Denmark and Greenland, according to people familiar with the arrangement.
The agreement calls for the United States to return to Narsarsuaq in southern Greenland, where American forces operated the Bluie West One installation during the World War II and Cold War eras, while also establishing a presence at Mestersvig on Greenland’s remote eastern coast.
Narsarsuaq, once an important American military facility, now has a population numbering only a few dozen people. The United States closed its military base there in the 1950s as its defense posture in Greenland evolved.
Mestersvig, meanwhile, is currently a Danish military outpost used by the Sirius Dog Sled Patrol, an elite Danish unit responsible for conducting long-range patrols and helping enforce Danish sovereignty across Greenland’s vast and sparsely populated Arctic territory. Two people familiar with the planned agreement identified Narsarsuaq and Mestersvig as the locations where the new American presence is expected to be established.
The United States, Denmark and Greenland are scheduled to formally sign the new agreement Tuesday at 10:30 a.m. EDT on the sidelines of the United Nations General Assembly in New York. President Donald Trump is expected to meet Danish Prime Minister Mette Frederiksen and Greenland Prime Minister Jens-Frederik Nielsen for the trilateral signing ceremony.
The full text of the agreement has not yet been released publicly. Three people briefed on the arrangement, who spoke on condition of anonymity, cautioned that its provisions will not be considered final until the agreement is formally signed.
The governments of Denmark and Greenland did not immediately respond to requests for comment on the specific plans for the two military sites. The White House likewise did not immediately provide additional details about the planned expansion.
Denmark has characterized the broader agreement as a way of placing Arctic security more firmly within the NATO framework rather than treating the defense of Greenland primarily as a matter between Washington and Copenhagen. Danish officials have said the agreement will respect Greenland’s sovereignty while addressing growing security concerns in the Arctic.
The new arrangement follows months of negotiations that began amid tensions over President Trump’s repeated statements that the United States should control Greenland. Trump had at times declined to rule out the use of economic or military pressure in seeking American control over the semiautonomous Danish territory.
Those statements produced a significant dispute between NATO allies earlier this year, particularly in January, as Danish and Greenlandic leaders insisted that Greenland was not for sale and that decisions about the island’s future belonged to its people. Washington, Copenhagen and Nuuk subsequently entered negotiations aimed at addressing American security concerns without transferring sovereignty over the territory.
The resulting agreement is expected to preserve Danish sovereignty over Greenland while substantially increasing the ability of the United States to operate militarily on the island. Denmark has also said the arrangement broadens responsibility for Arctic security by involving NATO more directly.
The expansion would represent a partial return to the much larger American military presence that existed in Greenland during the Cold War.
At its height, the United States operated 17 military installations across Greenland and stationed more than 10,000 personnel on the island. Greenland’s geographic position between North America and Europe made it particularly important for early warning systems and defense planning during the confrontation between the United States and Soviet Union.
Today, the American military presence is concentrated at Pituffik Space Base in northwestern Greenland, formerly known as Thule Air Base. Approximately 150 U.S. military personnel are currently stationed there. The installation plays an important role in missile warning, missile defense and space surveillance.
With the addition of Narsarsuaq and Mestersvig, the United States would once again maintain a military presence at three separate locations across Greenland, significantly extending its reach across the island as Washington and its NATO allies place increasing emphasis on security in the Arctic.
