What is at stake is not only territorial sovereignty but the very grammar of alliances. Indeed, for the first time since the end of the Cold War, a European NATO member is facing explicit pressure, including economic coercion and implicit threats, from its principal ally.
The paradox is striking. How can Washington be kept firmly committed to the defense of Ukraine while restraining its expansionist impulses toward a European ally and member of NATO? Above all, how can Europe prevent a confrontation over Greenland from undermining cooperation on the Ukrainian front.
This contradiction is not accidental. It exposes Europe’s structural vulnerability. Its security architecture remains dependent on American power, yet that same power is now being used in a transactional and unilateral manner that destabilizes the alliance itself.
In Paris this week, these tensions took concrete form through parallel meetings. One focused on coordinating support for Ukraine with American representatives. The other consisted of diplomatic exchanges aimed at demonstrating European solidarity with Denmark in the face of American proposals regarding Greenland. Side by side, these discussions revealed the growing strain within the alliance.
This diplomatic choreography reflects a deeper anxiety. European capitals are attempting to compartmentalize crises that are in reality deeply interconnected. The same administration that guarantees Ukraine’s survival is simultaneously testing the limits of European sovereignty in the Arctic.
This situation is widely perceived as a symptom of a new and unstable world order in which traditional alliances are being put to the test. In several European capitals, political responses are seen as having been too timid, particularly in light of American statements that have even suggested the possible use of force to seize Greenland.
French President Emmanuel Macron, who will be “in contact with his European counterparts all day,” has announced that he will call for the activation of the EU’s anti-coercion instrument if the tariff threats brandished by Donald Trump are carried out. This tool, which requires a qualified majority of EU countries to be implemented, allows, among other measures, the freezing of access to European public procurement markets or the blocking of certain investments.
The use of tariff threats as leverage, openly brandished by Donald Trump, marks a shift from alliance based persuasion to economic coercion. In doing so, it transforms security discussions into commercial bargaining and undermines the normative foundations of NATO.
In a joint declaration, the governments of major European powers from Paris to London and from Berlin to Rome Warsaw and Madrid emphasized that Greenland belongs to its people, and that any decision concerning the future of the territory must be taken by Denmark and Greenland alone, in accordance with international law. This collective stance sought to reaffirm a minimum of shared principles.
This declaration was necessary but insufficient. It reaffirmed principles without clarifying consequences. The absence of a clearly articulated European red line leaves open the question of how far Washington can go before solidarity turns into confrontation.
Yet this declaration leaves a crucial question unanswered. What would these countries do if the United States were to override Danish sovereignty. Recent diplomatic signals point to rising tensions, with the Danish Prime Minister stating that an American acquisition is absolutely unnecessary, while an increased European military presence is being deployed locally to affirm the protection of the territory against any unilateral pressure.
The deployment of European troops, though modest in scale, is symbolically significant. It represents a quiet but meaningful shift. It marks one of the rare instances where European militaries position themselves not against Russia but as a counterweight to pressure from the United States itself, even if officially framed within NATO exercises and Arctic security cooperation.
WHAT ABOUT UKRAINE?
On the Ukrainian front, the core issue remains the provision of long term security guarantees for Kyiv, with the aim of establishing a durable and credible defense against Russia. After more than a year of mobilization, most European states continue to advocate for massive support material financial and strategic while also exploring the conditions for a possible negotiated ceasefire. Many believe that without American involvement, European efforts would lose much of their effectiveness in the face of Moscow.
Ukraine thus becomes the strategic hostage of a broader transatlantic imbalance. European leaders fear that any open rift with Washington over Greenland could translate into reduced American engagement in Eastern Europe, whether through delayed aid packages, weakened intelligence sharing, or diminished deterrence posture.
This relationship of dependence has not been broken. The United States is now involved in coordination mechanisms from which it had initially remained distant, illustrating a persistent strategic reality. Europe cannot fully replace American power in collective defense.
Despite years of discourse on strategic autonomy, the Greenland episode brutally exposes the limits of European military and political sovereignty. Autonomy without capacity remains an aspiration, not a reality.
A third actor quietly shapes this crisis China. Largely absent from public debate but central in strategic calculations, Beijing does not claim Greenland directly, but it projects itself there. For more than a decade China has defined itself as a near Arctic power investing in infrastructure, scientific research, shipping routes and strategic resources. Greenland occupies a central place in this vision both for its rare earth elements essential to the global energy transition and for its position on future polar routes connecting Asia to Europe.
It is precisely this diffuse but persistent Chinese presence that fuels American security justifications. Washington fears not only a direct military threat but a slow economic technological and political penetration of the Arctic by China. The American discourse on national security thus conceals a broader Sino American rivalry that far exceeds Greenland, turning a European autonomous territory into a piece of a systemic confrontation.
For Europe the difficulty is double. Rejecting American predation without opening the door to increased Chinese influence. Defending Danish sovereignty without becoming the passive theatre of a great power confrontation. In this triangle Washington Moscow Beijing, Greenland becomes a real world test of Europe’s ability to exist as a strategic actor rather than a mere space of projection for others’ ambitions.
Thus Ukraine Greenland and China are not three separate issues but a single strategic continuum. War in the East, pressure in the North, and Sino American rivalry outline one and the same question for Europe can it still be protected without being dominated.
DELICATE BALANCE
European leaders are therefore forced into a delicate exercise. They must assert a united front in support of Ukraine while setting clear limits on what is perceived as potentially destructive ambitions for transatlantic cohesion in Greenland.
This balancing act is made even more complex by the Arctic dimension. Climate change, melting ice, and new maritime routes have turned Greenland into a strategic prize coveted not only by the United States but also by Russia and China. What is presented as national security is in fact long term geopolitical positioning.
To achieve this, they must navigate several imperatives. These imperatives coexist uneasily but cannot be separated. Keeping Washington engaged and committed to countering Russian aggression. Strengthening European defense capabilities in a secondary role, particularly in the Arctic and Eastern Europe. Affirming that the sovereignty of a European territory cannot be treated as a mere strategic commodity, even by a historic ally. Reinforcing multilateral cooperation mechanisms, particularly within NATO, in order to defuse tensions before they escalate into political or military ruptures.
The challenge is therefore not Greenland alone, nor Ukraine alone, but the preservation of an alliance system that risks being hollowed out from within by unilateralism, transactional diplomacy, and the normalization of coercion among allies.
Thus, the challenge facing Europeans is not only to respond to a specific American policy, but to collectively rethink Europe’s role in a geopolitical environment shaped by rivalry with Moscow, relations with Washington, and profound strategic shifts linked to climate change and the Arctic.
Europe is confronted with a moment of truth. Either it accepts that alliance loyalty is conditional and asymmetric, or it begins to translate political unity into strategic capability. Greenland is not a footnote to Ukraine. It is the warning shot.
*Author is former member of the UN senior staff