US Allowed to Deploy “Golden Dome” Defense System in Greenland Deal

After months of rising tension over one of the world’s most strategically placed islands, US President Donald Trump and the leaders of Greenland and Denmark have signed an agreement that clears the way for a larger American military footprint on Greenland — a deal that could ease a standoff over the mineral-rich Arctic territory.

The agreement was signed while Mr Trump was in New York for the UN General Assembly. It does not deliver on his earlier demand that the United States adopt Greenland as a US territory as a way to counter the growing Arctic presence of Russia and China.

Instead, the pact moves in a different direction: it explicitly allows an expanded US military presence on the icy island, an approach that emerged as Greenland’s leaders pushed back against the idea of a complete US takeover.

According to the text released after the ceremony, the United States would be able to establish a “Golden Dome” defense system in Greenland, described as protection against ballistic missile threats.

Greenland’s geography has long shaped its security role. The shortest route between Europe and North America runs over the island, which already hosts the northernmost US military base.

Speaking to assembled world leaders at the UN ahead of the signing, Mr Trump said the new agreement grants the US “permanent control over security and all other needs on that territory.”

“No US adversary will ‌ever be permitted to establish a military presence in Greenland ⁠any more, or make sensitive investments there without our express written approval,” Mr Trump said.

Mr Trump signed the deal alongside Danish Prime Minister Mette Frederiksen and Greenland Prime Minister Jens-Frederik Nielsen during a trilateral ceremony that followed his UN address.

Ms Frederiksen called it an agreement that can “last forever,” saying it highlights the importance of the NATO alliance while also respecting Greenland’s right to self-determination.

A strong NATO

Mr Nielsen also pointed to NATO’s role in the High North. “We believe that it is vital to keep NATO strong, also in the Arctic, where the alliance has a key role to play,” he said.

Greenland, once a colony and now a semi-autonomous territory within the Kingdom of Denmark, sits between the Arctic and North America and contains vast energy resources.

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The US already operates Pituffik Space Base in remote northwestern Greenland. Under the new deal, two additional military sites would open: Narsarsuaq, a former Cold War airbase where the population has dwindled ⁠to just a few dozen, and Mestersvig, a location currently used by the Sirius Dog Sled Patrol, a Danish special forces unit.

“We will immediately begin the process of developing a ‌large military presence in the appropriate location. We will be building two very major military bases,” Mr Trump said in his UN speech.

Earlier this year, Mr Trump’s refusal to ⁠rule out military or ‌economic force to acquire Greenland triggered a diplomatic crisis in January within NATO and drove Denmark and Greenland’s government into months of intensive negotiations.

“The reason why we can conclude this agreement, which is beneficial from Greenlandic, American, and European perspectives, as well as on behalf of the Kingdom of Denmark, is that it is a matter of security policy,” Ms Frederiksen said in New York yesterday.

The agreement’s text says it updates a 1951 ⁠defense treaty that has served as the legal foundation for the US presence on the island.

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It also states that Washington may pursue additional bases in the future, with specifics to be settled through mutual agreement.

The pact has no end ⁠date. It provides US aircraft and vessels broad access across Greenland and its territorial waters, and it prevents non-NATO states from creating military installations on the island.

Foreign investment is also constrained, effectively stopping states and investors from countries outside NATO, NATO partners and the European Union from gaining control or significant influence in areas considered especially sensitive, including critical infrastructure and resource extraction.

While the deal still requires approval by the parliaments of Denmark and Greenland, it signals a clear pivot away from Mr Trump’s earlier push for outright acquisition.

At the same time, it marks the first major expansion of US military infrastructure in Greenland since the Cold War, when the United States maintained 17 installations ‌and more than 10,000 personnel there.