The Arctic has returned to the centre of Western grand strategy, not because of romance about frontiers or a sudden fascination with ice, but because control of the far north shapes deterrence, communications, and sea power across the Atlantic world. For the United States (US) and Europe, the Arctic is the high ground of national security. It affects the balance of power in the North Atlantic, the western flank of Europe, and the eastern seaboard of the US. That balance is increasingly contested.

At the most fundamental level, Arctic geography is inseparable from missile deterrence and missile defence. The shortest trajectories for long-range missile flight between Eurasia and North America run over or near the polar region. Early-warning radars, space sensors, command links, and intercept geometry all work better, and in some cases only work, with Arctic basing and access. In a crisis, minutes matter. The ability to detect launches early, confirm tracks, and communicate without disruption is a core feature of credible deterrence. If the Arctic becomes porous, or politically uncertain, deterrence becomes less stable, and escalation control becomes harder.

Maritime control is the second pillar. The Greenland Iceland United Kingdom Gap (GIUK) remains the critical choke point between the Arctic and the wider Atlantic. It is the gate through which submarines move. It is also the corridor through which the North Atlantic Treaty Organisation (NATO) must protect reinforcement routes and sea lines of communication.

If an adversary can push submarines through the gap undetected, it gains the ability to threaten shipping, to stalk carrier groups, and to put at risk the undersea cables and infrastructure that knit the Atlantic economy together. Submarine presence is not only a military problem. It is a political tool. It creates ambiguity and coercive leverage. It forces defensive spending. It can be dialled up or down to signal intent.

Communication

The third pillar is space, satellites, and the communications layer that sits underneath modern war and modern economies. Arctic latitudes matter for satellite coverage, ground stations, and resilient routes for secure communications between North America and Europe. Undersea cables, satellite links, and high-latitude data relay sites are central to Western national security and therefore strategic targets for the West’s adversaries.

The role of Starlink in the Ukraine war is but the latest case in point that the ability to maintain reliable communication, navigation, and intelligence is essential to national security. Across the Atlantic, that capability depends disproportionately on the stability of the US’s Arctic footprint.

That footprint is now under threat.

China’s posture is an early indicator of how Arctic competition is changing. Beijing describes itself as a near-Arctic state, and thereby an emerging polar power, and has built a narrative around polar research, shipping routes, and scientific presence. Those activities are presented as civilian and commercial, but they also create influence, access, and familiarity.

In strategic terms, presence is a form of option creation. It lays the groundwork for future leverage. It allows relationships to be cultivated, infrastructure to be proposed, and political arguments to be normalised. For Washington and European capitals, the point is not whether Chinese activity is overtly military. The point is that China is deliberately embedding itself in a theatre that directly affects the Atlantic balance.

Disruption

Russia, by contrast, is already a dominant Arctic actor and has direct incentives to disrupt Western control. Russia does not need to conquer Greenland or dominate the GIUK gap to gain leverage. It needs only to threaten Western control in ways that impose costs and generate uncertainty.

That uncertainty can be traded for concessions in other theatres. Arctic pressure can be used to stretch NATO resources, to force hard choices, and to signal escalation options without crossing the kind of immediate trigger that would unify Western responses.

This is where the European military resource constraint becomes decisive. Europe cannot secure its eastern flank against Russia without massive US support. It can hardly secure its western approaches on its own. Doing both at once is far beyond current European military capacity, industrial depth, and political readiness. European naval capabilities are uneven, stockpiles are thin, and the ability to sustain high-end operations across multiple fronts is non-existent.

That means the Arctic and the North Atlantic cannot be treated as a secondary or tertiary theatre, because it is precisely where the alliance can be pressured when its attention is drawn elsewhere. Greenland sits at the centre of this entire structure.

The biggest immediate vulnerability is political rather than military. Greenland can alter its current Western allegiance through a simple referendum, the outcome of which the Danes and Europeans are on record saying they would accept. Given Brussels’s political correctness and sensitivity on questions of colonial conquest, those assurances are quite sincere.

A domestic shift in Greenland’s political alignment will see it drift out from under Danish influence and, by extension, the broader European policy umbrella. The point is not that Greenland would suddenly become hostile. The point is rather that a situation might easily be engineered where a nexus of foreign financing offers, infrastructure deals, investment access, and political relationships can be leveraged to pull a territory into a more ambiguous strategic posture. In a contested Arctic, ambiguity is opportunity for adversaries.

Rational

This context explains why the Trump administration’s emphasis on Greenland is strategically rational. The public argument often presents the US interest in Greenland as crude expansionism. Those analyses show a deep ignorance of the underlying logic, that the motivation of the US policy is the Western security perimeter and that the US objective is to ensure that Greenland remains aligned with the West in a way that is durable, and in a way that cannot be loosened by external pressure, economic inducements, or political drift.

An analogy with Alaska is instructive. Alaska was once dismissed as a remote and frozen asset, a so-called “piece of ice” purchased from Russia. Over time, it proved to be economically valuable and strategically indispensable. It became an anchor of North American defence and a platform for power projection. Greenland has even greater strategic importance than Alaska, and arguably greater economic potential, meaning considerable upsides for Greenland’s people.

Claims about the gulf between Europe and the US on Greenland are also overstated. European politics is shifting. Across much of the continent, pressure is building against climate ideology that raises costs without delivering stability. Energy prices have become an electoral issue. Immigration without assimilation has become a social cohesion issue.

As these pressures accumulate, voters are demanding stronger borders, more internal security, and more pragmatic economic policy. That shift is not uniform, and it varies by country, but its direction is clear enough to shape elite calculations.

Security consequences

The security consequences are straightforward. A Europe that is moving rightwards is a Europe that wants greater security from Russia, greater resilience against Chinese influence, and tighter control over geography that can be exploited by hostile states and networks. It also means a Europe that is increasingly open to a harder line on deterrence and a less ideological approach to energy and industry.

These trends narrow the gap between Washington’s broader global policy priorities and Europe’s underlying interests.

This is why a win-win settlement over Greenland is plausible. The probable end state is not a dramatic rupture between allies, as the moderate and sensible comments from all sides at Davos this week have again made clear. It is a negotiated framework that strengthens the Western security footprint while recognising Greenland’s domestic political trajectory and its desire for prosperity.

The core requirement is alignment that is resilient, meaning it cannot be undermined by external financing, strategic ambiguity, or political drift. A settlement that delivers investment, infrastructure, and economic opportunity for Greenland, while locking in security arrangements that protect North Atlantic stability, will meet the interests of all major Western actors.