The United States is expected to expand its military presence in Greenland under a new security agreement involving the U.S., Denmark, and Greenland, according to reports ahead of a planned signing ceremony this week.
The agreement is expected to be signed on Tuesday during the United Nations General Assembly in New York. While the full details have not yet been released, reports indicate that the deal could lead to the reopening of a former U.S. military base in southern Greenland and the deployment of American forces to another strategic location in the eastern part of the island.
President Donald Trump announced last week that Washington had reached an agreement with Denmark and Greenland regarding security cooperation in the Arctic territory. Trump said the arrangement would provide the United States with what he described as permanent control over security matters and other strategic needs connected to Greenland.
According to reports citing unnamed sources, two locations are expected to play a key role in the new agreement. One is Narsarsuaq, a small settlement in southern Greenland that once hosted the Bluie West One military base during and after World War II. The installation was used by the United States during the early Cold War period before operations ended in the 1950s.
The second location is Mestersvig, a remote military outpost in eastern Greenland. The site is currently used by the Sirius Patrol, a Danish special forces unit known for conducting long-range patrols across Greenland’s vast Arctic regions using dog sleds.
Officials from the United States, Denmark, and Greenland have not publicly confirmed the reported plans. The final terms of the agreement have also not been released. Reports suggest negotiations continued until shortly before the expected signing ceremony.
The agreement follows months of discussion surrounding Greenland’s growing strategic importance. Trump has repeatedly highlighted the island’s value to U.S. national security and has argued that Greenland plays a critical role in protecting Arctic and North Atlantic interests.
Earlier efforts by Trump to pursue greater U.S. control over Greenland generated concern among Greenlandic leaders and several European governments. Greenland has consistently maintained that it is not for sale and that decisions about its future must respect the wishes of its people.
Danish and Greenlandic officials have emphasized that the new agreement respects existing sovereignty arrangements. Greenland’s government stated that the deal strengthens security for Greenland, Denmark, the United States, and the wider Western alliance.
Danish Prime Minister Mette Frederiksen also said the agreement recognizes both the sovereignty of the Kingdom of Denmark and Greenland’s right to self-determination.
The Arctic has become increasingly important in global security planning. Melting sea ice is creating new shipping routes and opening access to previously difficult-to-reach natural resources. These developments have increased interest in the region from major powers, including the United States, Russia, and China.
The new agreement reportedly includes measures aimed at limiting military and economic influence from non-NATO countries in Greenland. Reports indicate that nations outside the alliance, particularly China and Russia, would face restrictions on establishing military activities in the territory.
The agreement is also expected to address foreign investment in Greenland’s mining and critical minerals sectors. Greenland holds significant deposits of minerals used in advanced technology, renewable energy systems, and defense industries. These resources have become increasingly important as countries seek secure supply chains for strategic materials.
U.S. Secretary of State Marco Rubio discussed Arctic security on Monday with leaders from several allied nations, including Denmark, Greenland, Canada, Norway, and Sweden. He emphasized the importance of stronger defense cooperation, investment in infrastructure, and the development of national security capabilities throughout the region.
The United States has a long military history in Greenland. During the Cold War, the U.S. operated 17 military installations across the island and stationed more than 10,000 personnel there.
Today, Pituffik Space Base remains the only active American military installation in Greenland. The facility supports missile warning, space surveillance, and Arctic defense missions and hosts about 150 U.S. military personnel.
If finalized as expected, the new Greenland Security Agreement would mark one of the most significant expansions of American military activity in Greenland in decades and further strengthen Western security cooperation across the Arctic region.

