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The Pentagon wants access to Narsarsuaq, a southern port with deepwater capabilities. It also wants Kangerlussuaq, a southwestern airfield with infrastructure capable of handling heavy military aircraft. A third site remains undisclosed.
These aren’t random picks. They are places the United States once controlled.
America constructed Narsarsuaq during World War II. It later abandoned the site in the 1950s. Kangerlussuaq followed a similar path, built during the Cold War and eventually transferred back to Danish and Greenlandic authorities in the 1990s.
What critics once framed as reckless ambition is now being reframed as recovery of lost strategic ground.
Here is where the story takes a dramatic turn.
The United States may not need Denmark’s approval at all.
The 1951 Greenland Defense Agreement, signed during the early years of the Cold War, grants Washington broad authority to establish and operate military facilities across Greenland.
General Guillot underscored just how powerful that agreement remains today.
“We don’t really need a new treaty,” he said. “It’s very comprehensive, and it’s frankly very favorable to our operations or potential operations in Greenland.”
This decades-old agreement, originally designed to counter Soviet threats, is now being revived in a very different geopolitical landscape.
The Arctic is no longer a quiet frontier. It has become a strategic hotspot.
Russia has spent years expanding its presence across the region, building a chain of military bases and deploying nuclear-capable assets. Its fleet includes dozens of icebreakers, many equipped with advanced weapon systems.
China has also entered the arena. In recent years, it has conducted deep-sea operations beneath Arctic ice and increased naval coordination with Russia in nearby waters.
Against this backdrop, the United States has been playing catch-up.
At one point, America had only a single operational icebreaker. That imbalance did not go unnoticed.
Trump responded by ordering the construction of multiple new icebreakers, signaling a renewed focus on Arctic capability. But hardware alone is not enough. Geography matters.
Greenland sits at a critical junction, offering a forward position for monitoring and defense. Control of key locations on the island could reshape how the U.S. responds to threats emerging from the north.
Meanwhile, Mette Frederiksen made resistance to Trump’s Greenland ambitions a centerpiece of her political strategy.
She called early elections, positioning herself as a defender of Danish sovereignty.
The result did not go as planned.
Her party suffered its worst performance in a century, leaving her in a weakened position as she attempts to maintain power. At the same time, her government is now engaged in negotiations tied to expanded U.S. military access under a treaty that remains legally binding.
General Guillot offered a telling assessment of the situation, noting that Denmark has been “very, very supportive” and describing ongoing discussions as “very productive.”
Currently, the U.S. operates Pituffik Space Base in northern Greenland, a critical installation for missile detection and early warning systems.
But its location limits broader operational flexibility.
Expanding into southern and southwestern Greenland changes the equation.
It provides access to vital shipping routes, strengthens air mobility, and enhances surveillance capabilities across a region increasingly contested by global powers.
Guillot described the importance of this positioning in stark terms, referring to Greenland as part of “the 2 o’clock approach”—a key directional corridor for potential threats.
For decades, the U.S. lacked a significant deepwater presence in that zone. That gap is now being addressed.
What began as a widely ridiculed proposal is evolving into a tangible strategic shift.
Trump’s critics labeled the Greenland push as dangerous and unrealistic. Yet the groundwork for expanded American presence is already being laid, backed by legal authority that predates most modern geopolitical conflicts.
The same establishment voices that once dismissed the idea are now watching as it moves forward through military channels and longstanding agreements.
Whether by design or by rediscovery, a Cold War-era pact is now shaping the future of Arctic security.
And this time, the laughter has stopped.
