US, Denmark and Greenland sign security agreement

Security Agreement Signed at United Nations General Assembly

The deal establishes that the United States has secured permanent control over security and related needs in Greenland, addressing multiple strategic US priorities. However, the agreement largely formalizes existing operational frameworks while introducing specific restrictions on resource development.

Military Expansion and Cold War Infrastructure Revival

Under the terms of the accord, the US gains the right to expand its military presence on the Arctic island, a capability Washington has held since the 1950s. The text also provides a green light to reactivate disused Cold War airfields and surveillance bases, and guarantees that no US adversary can build a military installation on the territory.

The central mechanism of the new accord involves a restriction on access to Greenland’s natural resources. A specific clause requires express written approval from the United States for any foreign entity attempting to make sensitive investments or access the island’s oil, mineral, and rare earth reserves.

Trump Announces Permanent Control on Social Media

“I am pleased to announce that the United States of America has entered into an Agreement with The Kingdom of Denmark, and Greenland, that gives the United States permanent control over security, and all other needs, in Greenland, completely addressing ALL of our many US concerns,” Mr Trump announced on social media.

The diplomatic maneuver follows public pressure from Washington regarding the Arctic territory, which has a population of 56,000. Previous proposals by Mr Trump to annex the island as a 51st state drew sharp rebukes from European officials, including Danish politician Anders Vistisen.

Geopolitical Critique and NATO Alliance Concerns

Geopolitical analysts have questioned the long-term diplomatic impact of the accord. Atlantic Council geostrategist Imran Bayoumi described the outcome as a Pyrrhic victory, noting that the agreement achieves marginal changes in the defense framework while undermining trust in the NATO alliance.

Rare Earth Stocks Surge Amid Supply Chain Pressures

Conversely, commercial stakeholders have welcomed the outcome. Greenland-linked rare earth stocks surged following the announcement on Monday, September 28, 2026. Robert Price, CEO of Texas-based Greenland Energy, told Fox News Digital that exploration efforts are vital to reducing supply chain dependencies on China and Russia.

Mr Price’s firm faced regulatory setbacks in July when Greenland and Danish authorities rebuked the company for importing drilling equipment without a permit, delaying a $US60 million exploration program by at least six months. Former US Ambassador to Poland Daniel Fried noted that the new agreement allows the US to walk back from previous threats of aggression, describing the base reactivation plans as welcome assurances rather than major breakthroughs.