Unpacking the military buildup in Greenland amid Trump’s sovereignty push

As global leaders convene in Davos this week, a quiet but significant military escalation is unfolding on the world’s largest island. Denmark has deployed additional troops to Greenland, its autonomous Arctic territory, while proposing a NATO surveillance mission to bolster defences.

NATO Secretary General Mark Rutte, however, has shown limited enthusiasm, emphasizing ongoing cooperation rather than new commitments. Meanwhile, the United States is sending aircraft to its Pituffik Space Base, insisting all activities are routine.

Both sides maintain these moves are pre-planned exercises, but the timing – amid President Donald Trump’s aggressive demands for U.S. control – suggests a deeper strategic signaling.

What does this buildup really mean? Experts view it as a defensive posture to deter potential U.S. coercion, safeguard sovereignty, and test NATO’s unity in an era of transatlantic strain.

The catalyst is Trump’s 19 January letter to Norwegian Prime Minister Jonas Gahr Støre, leaked via U.S. ambassadors, where he linked his Nobel Peace Prize snub to a shift from “pure peace” to U.S. interests. Claiming Denmark can’t protect Greenland from Russia or China, Trump demanded “Complete and Total Control,” questioning historical claims. Just before, he threatened tariffs starting at 10% on 1 February (rising to 25% by June) against Denmark and allies like France, Germany, and the UK unless a deal is reached. He hasn’t ruled out force, escalating fears of NATO’s collapse if the U.S. invades an ally.

When I saw this letter, I literally thought, “This is too stupid even for him.” I should have known better. pic.twitter.com/HvlCZQiXG3
— Mary L Trump (@MaryLTrump) January 19, 2026

In response, Denmark ramped up its presence. On 19 January, about 58 troops arrived in Kangerlussuaq, joining 60-100 already in Nuuk for Operation Arctic Endurance – a multinational exercise involving France, Germany, Sweden, Norway, Finland, the Netherlands, UK, and Canada. Danish officials, including Maj. Gen. Søren Andersen of Arctic Command, describe it as long-term, potentially lasting 1-2 years with rotations. Chief of the Royal Danish Army Peter Boysen also deployed, signalling high-level commitment. Defence Minister Troels Lund Poulsen framed it as enhancing “permanent military presence” with NATO allies, including aircraft, ships, and soldiers.

Denmark and Greenland’s Foreign Minister Vivian Motzfeldt met Rutte in Brussels on January 19, floating a NATO mission like “Arctic Sentry” for surveillance and security. Rutte acknowledged the Arctic’s importance to collective defence, praising Denmark’s investments in drones, maritime patrols, and F-35 jets. Yet, he stopped short of endorsement, focusing on existing High North presence. Sources indicate Rutte urged restraint on further deployments to avoid provoking Trump, reflecting his cautious approach amid alliance fractures.

The U.S., with 200 troops at Pituffik (renamed from Thule in 2023), is deploying NORAD aircraft for “long-planned” activities coordinated with Denmark and Canada. Upgrades, including a $25 million runway project, are underway for missile warning and space surveillance. Officials stress routine cooperation under the 1951 defence pact, but the moves coincide with Trump’s rhetoric, potentially reinforcing U.S. leverage in the Arctic.

Analysts interpret the buildup as a “tripwire” strategy: symbolic forces to deter U.S. action, while asserting European solidarity. It’s pre-planned to allow de-escalation, but accelerated to counter Trump’s threats, which cite security against Russia/China amid melting ice opening Arctic routes. However, it risks backfiring, as Trump views it as provocation, prompting tariff vows. European leaders, convening in Brussels on 22 January, are expected to discuss retaliatory tools like the EU’s Anti-Coercion Instrument.

Greenland to eclipse Ukraine at Davos vanity fair

But before that, a high-stakes confrontation looms at Davos, where Trump is poised to deliver a special address that could profoundly disrupt the established global order.

These developments underscore Europe’s maturation as a geopolitical actor, compelled to confront an erstwhile steadfast ally whose conduct increasingly resembles that of an adversary. The true test now lies in safeguarding the European Union’s cohesion amid the accelerating erosion of NATO’s foundational unity.

With agencies.

Caption: Danish soldiers land at Nuuk airport in Nuuk, Greenland, 19 January 2026. The Danish Armed Forces are increasing their presence and training activity in and around Greenland with the Greenlandic authorities and NATO allies, according to the Danish Defense. EPA/Mads Claus Rasmussen