A renewed push by the U.S. to acquire Greenland has ignited diplomatic tensions with Denmark, threatening to splinter the NATO alliance as Washington seeks to expand its military footprint to three new locations on the strategically vital island.
“This is not what Trump wants, deep down, but he might accept it if he can sell it as a victory,” said Rasmus Sinding Søndergaard, a senior researcher with the Danish Institute for International Studies. The U.S. is already permitted to expand forces under a 1951 treaty, and Søndergaard noted that President Trump “could have achieved this without triggering a massive international diplomatic crisis.”
The U.S. is seeking to establish a presence for special forces, secure permanent access to Arctic waters, and expand space and submarine monitoring. The proposed locations include two sites at Kangerlussuaq and Narsarsuaq, plus a potential deep-water port near the existing Pituffik Space Base. The primary obstacle remains Denmark’s refusal to cede sovereignty over any bases, a stance that clashes with Washington's apparent goal of outright ownership.
This diplomatic standoff risks broad market volatility and a flight to safety, with the potential to destabilize the Arctic and strain transatlantic trade. The move is seen as part of a broader strategy linked to the proposed $185 billion Golden Dome missile-defense system, which requires assets in the North Polar region. While defense and aerospace firms could see increased interest, the fallout underscores a growing rift within NATO.
The American interest in Greenland is not new, with purchase attempts recorded in 1867 and 1910. After World War II, the U.S. secretly offered Denmark $100 million for the island, equivalent to roughly $1.6 billion today. The current conflict, however, is the first to so openly challenge the cohesion of the NATO alliance, of which both the U.S. and Denmark are founding members.
During the Cold War, as many as 10,000 U.S. soldiers were stationed in Greenland. Today, that number is around 150. The legacy of this presence includes abandoned bases like Bluie East Two, which was built in 1942 and left in 1947. Denmark recently paid nearly $30 million in 2018 to clean up waste left by the U.S. military, a point of contention for Greenlandic officials.
“We have never felt this threatened before and it is by our ally,” said Pipaluk Lynge, chairperson of the Greenlandic Parliament’s foreign and security policy committee. “The White House has a lot of work to do to regain our trust in Americans.” Her sentiment was echoed by former Greenlandic minister Naaja Nathanielsen, who stated that while the existing agreement allows for more bases, the U.S. “could begin by cleaning up their old waste.”
The strategic importance of the island is growing. Charles Galbreath, director for space studies at the Mitchell Institute for Aerospace Studies, noted that hypersonic weapons have pushed the U.S. to improve space monitoring. “Having the combination of assets in Greenland and Alaska, that does help monitor the North Polar region very well,” he said. The proposed expansion would restore parts of the U.S.’s Cold War footprint, but under a vastly different geopolitical climate.
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