The United States, Denmark, and Greenland have formalized a trilateral agreement enhancing security cooperation in the Arctic and North Atlantic, a move announced during the United Nations General Assembly in New York. This pact allows the U.S. to strengthen its military presence in Greenland without altering the island’s sovereignty.
Under the terms of the agreement, new defense areas will be established at Narsarsuaq and Mestersvig, and the U.S. will develop a “Golden Dome” missile defense system in Greenland. The arrangement, which modifies the 1951 U.S.-Denmark defense agreement, grants broader access for U.S. military aircraft and vessels across Greenland’s land and territorial waters. Additionally, it prohibits non-NATO countries from setting up military installations on the island and places restrictions on foreign investments in critical sectors such as infrastructure and resource extraction.
While the agreement acknowledges the sovereignty of the Kingdom of Denmark and Greenland’s right to self-determination, it must receive approval from the relevant Danish and Greenlandic parliamentary bodies before implementation. This development comes after months of tension stemming from U.S. President Donald Trump’s interest in acquiring Greenland, citing its strategic positioning between North America and Europe and its vast mineral and energy resources.
The U.S. already operates the Pituffik Space Base in Greenland, and the new agreement represents the most significant expansion of U.S. military infrastructure on the island since the Cold War. The expanded military presence underscores Greenland’s strategic importance in the Arctic region, both for defense and resource exploration.