Denmark Prepared for War Against the United States

Steven Højlund

Writer

March 20, 2026
9:18 am

Denmark’s foreign minister has defended the extraordinary military deployment to Greenland in January as a response to an unprecedented situation, while insisting that NATO remains viable despite growing tensions over President Trump’s continued interest in acquiring the Arctic territory.

The Extraordinary January Deployment

Danish Foreign Minister Lars Løkke Rasmussen acknowledged the unusual nature of the military response earlier this year. The deployment came at a time when the United States openly refused to rule out using military force to achieve President Donald Trump’s ambition of acquiring Greenland. According to recent reporting, Denmark prepared for a possible American attack by flying blood supplies to Greenland and positioning soldiers who could deter potential aggression.

Unprecedented Security Concerns

The situation around the new year represented a break from normal diplomatic relations between NATO allies. For the first time in modern history, Denmark needed to consider defensive measures against its primary security partner. The foreign minister described the circumstances as completely extraordinary, marking a significant departure from decades of transatlantic cooperation.

Danish troops arrived in Nuuk on January 19 as part of a broader response to the crisis. The deployment involved not just personnel but also preparations for potential casualties. Sources close to the operation confirmed that Denmark took concrete steps to prepare for scenarios that previously seemed unthinkable between allied nations.

Deescalation Through Action

Løkke Rasmussen pointed to the combined effect of Danish measures in calming the immediate crisis. The government’s response included diplomatic initiatives, military deployments, and close coordination with Greenlandic authorities. These actions appear to have temporarily reduced tensions, though the foreign minister emphasized that uncertainty remains about future developments.

However, the minister made clear that President Trump’s interest in Greenland has not disappeared. He expressed personal conviction that the American president still views Greenland’s acquisition as beneficial for the United States and, from Trump’s perspective, for the world. This assessment suggests Denmark must maintain heightened vigilance despite the current lull in tensions.

Ongoing Diplomatic Efforts

The Danish response extends beyond military measures to include sustained high level dialogue with American officials. Foreign Minister Løkke Rasmussen and Greenland’s Premier Vivian Motzfelt established a framework for ongoing discussions with the U.S. Secretary of State and Vice President. These diplomatic channels remain active regardless of Denmark’s domestic political calendar.

Election Does Not Halt Security Work

Despite Denmark’s upcoming parliamentary election on Tuesday, security initiatives continue without interruption. The foreign minister emphasized that Danish diplomats in both Greenland and Denmark operate under strong mandates approved through close cooperation between the two governments. This coordination reflects the constitutional relationship within the Kingdom of Denmark, where foreign affairs remain a shared responsibility.

The approach also benefits from broad parliamentary support across party lines. This consensus provides stability to Denmark’s Greenland policy even as the country prepares for potential government changes. Danish diplomats can therefore continue negotiations without waiting for electoral outcomes or new government formation.

Building on Operation Arctic Endurance

Denmark announced on January 14 a significant increase in its military presence in Greenland under Operation Arctic Endurance. Defence Minister Truls Lund Poulsen confirmed that more aircraft, ships, and soldiers would operate in and around Greenland throughout 2026. The operation builds on activities from 2025 and involves close coordination with NATO allies and Greenlandic authorities.

The operation includes guarding critical infrastructure, assisting local police, and conducting training exercises across the Arctic and North Atlantic. Denmark frames these activities as essential for operating in extreme conditions while strengthening both national and alliance security. Allied nations contribute troops, aircraft, and ships to the exercises, demonstrating NATO solidarity despite strains in transatlantic relations.

NATO’s Condition Under Question

Military experts have raised serious concerns about the alliance’s health following revelations about the January crisis. Professor Sten Rynning from the University of Southern Denmark described NATO as being on intensive care. His assessment reflects the fundamental damage done when member states must prepare defensive measures against each other.

The Framework Under Strain

The professor’s diagnosis suggests that the basic framework for allied cooperation has fractured. When a founding NATO member cannot assume benign intentions from the alliance’s most powerful member, the mutual defense guarantee loses credibility. This erosion affects not just Danish security but the entire European security architecture built over seven decades.

The situation carries echoes of other recent tensions within the alliance. Denmark previously demonstrated its willingness to act decisively in international waters, including the seizure of blacklisted vessels. The current Greenland crisis, however, strikes at the core of territorial integrity among allies rather than enforcement actions against third parties.

A More Optimistic View

Foreign Minister Løkke Rasmussen rejected the characterization of NATO as critically endangered. He maintained that the alliance remains viable and functional despite obvious strains. This more optimistic assessment reflects the Danish government’s need to balance honest acknowledgment of problems with maintaining alliance cohesion.

The disagreement between expert analysis and official government position highlights genuine uncertainty about NATO’s future. While diplomatic necessities require public confidence, the underlying reality of preparing for potential conflict with an ally cannot be easily dismissed. The contrast also reveals tensions between analytical frankness and political responsibility.

Historical Context and Future Implications

The current crisis builds on a complex history of American military presence in Greenland. During the Cold War, the United States maintained significant installations on the island with Danish consent. More recently, revelations emerged about toxic waste left behind at former American bases, creating ongoing environmental and political complications.

Sovereignty and Self Determination

Greenland’s status within the Kingdom of Denmark involves substantial autonomy, particularly regarding internal affairs. The island’s government plays a crucial role in security decisions affecting its territory. This constitutional arrangement requires Denmark to coordinate closely with Greenlandic authorities on defense matters, as demonstrated throughout the current crisis.

The question of Greenland’s future status remains open within this constitutional framework. While independence discussions have occurred periodically, the current security situation complicates any transition scenarios. American interest in acquisition adds external pressure to what might otherwise be an internal Danish Kingdom matter.

Arctic Geopolitics and Resource Competition

Climate change continues to increase Arctic accessibility, intensifying great power competition in the region. Greenland’s strategic location and potential resources make it valuable beyond traditional military considerations. This broader context helps explain sustained American interest despite diplomatic costs.

Denmark’s response through Operation Arctic Endurance acknowledges these realities by building long term capabilities rather than temporary deployments. The operation may continue for one to two years according to government statements, suggesting recognition that Arctic tensions will persist regardless of immediate political developments.

A Personal Take

I find myself torn between understanding Denmark’s defensive preparations and worrying about their long term implications. On one hand, any responsible government must prepare for scenarios its intelligence services consider possible, even when those scenarios involve allies. The Danish government would face justified criticism if it ignored warning signs and left Greenland vulnerable. The decision to deploy troops and medical supplies reflected prudent contingency planning rather than paranoia.

On the other hand, I cannot shake the concern that preparing for conflict with an ally may become a self fulfilling prophecy. Once military planners on both sides begin viewing each other as potential adversaries, the psychological shift can prove difficult to reverse. Denmark’s actions were defensive, but they also signal a breakdown in trust that extends beyond any single administration. Moreover, the resources devoted to contingency planning against the United States represent investments that cannot simultaneously strengthen cooperation within NATO’s original framework.