Donald Trump has stepped back from one of the most extraordinary disputes of his second presidency. After repeatedly insisting that the United States needed to acquire Greenland, refusing initially to rule out coercive measures and threatening additional tariffs on eight European countries that opposed him, Trump used the World Economic Forum in Davos to rule out military force and subsequently withdrew the threatened tariffs after discussions with NATO Secretary General Mark Rutte. Trump says a framework now exists for a long-term agreement concerning Arctic security, missile defence and critical minerals, although the details remain unclear and Rutte says Greenland’s sovereignty was not discussed in their meeting. Denmark continues to insist that the island is not for sale, while Greenland’s government maintains that Greenlanders themselves must determine their political future. The immediate crisis has therefore eased, but the episode raises a much more interesting question than whether America will actually acquire Greenland: what happens to an alliance when its strongest member begins using economic coercion against other members to obtain something they have explicitly refused to sell?
Trump’s strategic argument should not simply be dismissed because his proposed solution is controversial. Greenland is genuinely important. Its position between North America and Europe makes it valuable for missile warning, Arctic surveillance and control of increasingly accessible northern routes, while the United States already operates the Pituffik Space Base there. Climate change is making the Arctic more navigable and commercially relevant, Russia possesses extensive Arctic military infrastructure and China has sought a larger economic role in the region. Critical minerals add another strategic dimension. The United States therefore has legitimate reasons to want stronger access, investment and military cooperation in Greenland. The weakness in Trump’s argument is not his diagnosis that Greenland matters. It is the assumption that strategic importance requires political ownership. America can obtain many of the security benefits it wants through agreements with Denmark and Greenland without transferring sovereignty at all.
This distinction matters philosophically because sovereignty is not simply another asset class. If territory were an ordinary commodity, sufficiently large financial offers could settle most territorial disputes. But modern democratic sovereignty rests partly on the principle that people should not be transferred between states merely because stronger governments negotiate ownership over the land on which they live. Greenland is self-governing within the Kingdom of Denmark, and its population possesses a recognised right to determine its political future. The relevant question is therefore not whether Washington values Greenland more than Copenhagen does. It is whether Greenlanders consent to any change in sovereignty. Self-determination places a moral limit on pure great-power bargaining: populations are political agents rather than assets attached to territory.
Trump’s tariff threat made that principle more difficult because it attempted to convert American economic power into bargaining leverage over another NATO member’s territorial position. Germany’s major industrial organisations responded by calling for a unified European response, including possible use of the EU’s Anti-Coercion Instrument, arguing that accepting economic pressure over Greenland would invite similar demands later. Their concern reflects a basic problem in bargaining theory. Conceding to coercion can reduce today’s cost while increasing tomorrow’s expected cost if the coercer learns that threats work. Denmark therefore had reasons to resist even if resistance risked tariffs. Sometimes accepting an economically inefficient short-term loss is rational because it protects the credibility of a rule whose future value is larger.
The episode is even more consequential because NATO is based on mutual security among sovereign allies. Article 5 assumes that members protect one another against external attack. It was never designed for a situation in which the alliance’s overwhelmingly strongest member threatens another member over territory. Trump ultimately ruled out force, which substantially reduces the immediate danger, but the fact that the possibility entered serious diplomatic discussion creates a trust cost that cannot be removed as quickly as a tariff threat. Alliances depend not only on military capabilities but on expectations about how those capabilities will be used. Denmark does not need to believe America will invade Greenland for the controversy to matter; it only needs to assign a slightly higher probability to American coercion than it did previously.
This is a form of alliance credibility depreciation. Trust accumulated over decades can lower defence costs because allies do not need to insure heavily against one another. If that trust declines, governments begin purchasing insurance through greater independent military capability, diversified trade and alternative diplomatic relationships. Europe was already moving in this direction because of Russia and uncertainty over long-term American commitments. Greenland strengthens the argument that European strategic autonomy is necessary not because America has become an enemy, but because excessive dependence on any single external power creates vulnerability when interests diverge.
Yet Europe’s autonomy debate also needs realism. NATO Secretary General Mark Rutte has argued that Europe currently cannot defend itself without American support and would require dramatically greater expenditure and capabilities to do so independently. The United States provides intelligence, logistics, strategic airlift, missile defence and nuclear deterrence that Europe cannot replace quickly. This creates an uncomfortable asymmetry: Europe wants enough autonomy to resist American pressure while still depending heavily on American power to deter Russia. Strategic autonomy therefore cannot be declared into existence. It needs factories, military forces, command systems, nuclear arrangements and sustained fiscal commitment.
Trump may unintentionally accelerate exactly that process. His defenders can argue this is desirable: a Europe capable of defending itself would reduce the burden on American taxpayers. That is true. But greater European capability will also create greater European political independence. Washington cannot demand that allies become less dependent militarily while assuming they will remain equally deferential diplomatically. Capability produces agency. If Europe spends substantially more on defence and diversifies trade, future European governments may become more willing to oppose America on China, sanctions, technology regulation or the Middle East.
The disagreement has even strained Trump’s relationship with parts of the European nationalist right, whose leaders often admire his positions on migration, sovereignty and cultural politics. Figures normally sympathetic to Trump criticised coercion over Greenland, and far-right members of the European Parliament supported suspending movement on an EU-US trade agreement. This exposes an interesting contradiction within nationalist politics. Nationalists can cooperate ideologically across borders, but their underlying doctrine places national sovereignty first. A French or Danish nationalist may admire “America First” until America First conflicts with France or Denmark. Nationalism can create ideological friendships, but it cannot permanently create shared national interests because the philosophy itself says national interests should come first.
The most sensible outcome is therefore the one diplomacy now appears to be moving towards: stronger American and NATO access to Greenland without changing Greenland’s sovereignty. Arctic surveillance can increase, missile-defence infrastructure can expand and Western investment can reduce the possibility that strategically sensitive mineral projects become dependent on Russia or China. Denmark and Greenland receive greater security and investment while retaining political control. America receives most of the strategic benefits it actually needs without acquiring the territory formally. That is not a defeat for American interests. It is an example of why institutions can make ownership unnecessary by allowing states to share access to strategically important assets.
The crisis should still leave Europe with a lesson. The post-war Atlantic system depended on an unusual degree of confidence that American power, although vastly greater than that of individual European states, would remain constrained by alliance norms. Trump’s foreign policy is more openly transactional and therefore forces allies to price political risk they previously treated as negligible. Europe does not need to respond by abandoning America or constructing an anti-American bloc. It needs enough independent capacity that disagreement with Washington does not become economically or militarily intolerable.
Greenland itself deserves the final word because debates in Washington and European capitals can easily reproduce the very great-power politics they claim to oppose. The island’s approximately 57,000 people are not spectators in a negotiation between America and Denmark. They possess their own political identity and longstanding debate over eventual independence from Denmark. A genuine commitment to self-determination means accepting that the future of Greenland should ultimately depend on Greenlanders, even if their preferred outcome is inconvenient to larger powers.
Trump was right about one central fact: the Arctic is becoming strategically important much faster than Western institutions have adapted to it. Russia’s military presence, China’s ambitions, critical minerals and new shipping routes make greater investment unavoidable. But the strongest Western response would demonstrate precisely the principle its alliances claim to defend: security cooperation does not require stronger states to own weaker ones. If NATO cannot secure Greenland without transferring Greenland’s sovereignty, the alliance has a capability problem. If it can, then the entire ownership dispute was solving the wrong problem.
