OPINION | Face Off over Greenland: When tariffs become a tool of political coercion

The Greenland episode signals a world in which economic interdependence can no longer be regarded as a stabiliser

The United States’ threat to impose a 10 per cent tariff on exports from eight European countries for opposing its desire to acquire Greenland is not just an episode of trade brinkmanship. It is a revealing moment in the evolution of global power politics—one in which tariffs are no longer instruments of economic policy, but tools of political discipline.

Misuse of tariffs as an all-purpose weapon

What makes this threat particularly consequential is not the tariff rate itself, but the logic underpinning it. Trade measures are being explicitly linked to a non-trade geopolitical demand. In effect, market access is being conditioned on political alignment. This marks a departure from both the spirit of the rules-based trading system and the norms that have governed relations among allies since the end of the Second World War.

The Greenland episode signals a world in which economic interdependence can no longer be regarded as a stabiliser, but a vulnerability to be exploited.

From Rules to Leverage: The weakening of trade discipline

Under the multilateral trading system, tariffs were meant to follow rules, not political whims and fancies. WTO disciplines exist precisely to prevent countries, especially the powerful ones, from unilaterally weaponising trade policy for non-trade objectives. Tariffs may be raised to counter unfair trade practices, to address sudden import surges, or as authorised retaliation after legal adjudication, but not because countries are not willing to follow your political diktat.

The proposed tariffs are openly punitive, imposed not because these eight European countries violated any trade commitment, but because they have refused to endorse a geopolitical proposition. This collapses the distinction between trade enforcement and political coercion.

Predictability is vanishing

The damage lies less in the immediate measure than in the precedent it sets. If tariffs can be imposed because a country takes an inconvenient diplomatic position, then tariff bindings lose their meaning. Predictability, the single most valuable currency in global trade, evaporates. Market access becomes contingent, revocable, and political.

For businesses, this introduces a new and deeply destabilising risk: compliance is no longer just about rules, standards, or prices, but about geopolitical obedience. For governments, it signals that even formal and legally binding commitments offer limited protection against discretionary power.

Economic coercion as statecraft

Stripped of legal and diplomatic euphemisms, the Greenland tariffs represent economic coercion. They are designed to impose costs in order to alter sovereign decision-making on an issue wholly unrelated to trade. This is not negotiation; it is pressure.

This logic is deeply corrosive. Once economic coercion is normalised, it will become difficult to confine its use. Today the issue is Greenland; tomorrow it could be climate policy, technology regulation, defence procurement, or diplomatic posture towards third countries. The scope for discretionary retaliation expands rapidly.

For smaller and middle powers, the lesson is unmistakable. In a world where tariffs follow politics rather than rules, diversification is no longer just an economic strategy - it is a geopolitical necessity.

Allies as Adversaries: The strategic costs of intimidation

What is striking is that the targets are not rivals or adversaries, but long-standing allies. The implicit message is blunt: alliance status does not shield countries from economic punishment if they diverge politically. Trade, once a glue binding allies together, is being entirely repurposed.

The geopolitical consequences of targeting European allies are profound. Transatlantic relations have historically rested on a shared understanding: disagreements would be managed through dialogue, not coercion. The introduction of punitive trade measures into this relationship fractures that understanding.

Greenland’s strategic value—spanning military positioning, critical minerals, and future shipping routes—is undeniable. But asserting strategic interest does not legitimise coercive tactics. Territorial questions resolved through pressure rather than consent revive an older, transactional worldview ill-suited to contemporary norms of sovereignty and self-determination.

Crucially, this is a gift to strategic competitors. Any weakening of Western cohesion benefits its political adversaries. What is framed domestically as toughness risks translating internationally into strategic fragmentation.

The systemic risk

The most serious consequence of the Greenland tariff threat is systemic. When the world’s largest economy treats trade rules as optional and allies as pressure targets, it accelerates the erosion of multilateral norms already under stress. Others will not fail to notice, and to imitate.

The WTO, already weakened by dispute settlement paralysis, depends not only on enforcement mechanisms but on restraint by its most powerful members. When that restraint disappears, the system’s credibility follows. Rules without adherence become suggestions; commitments without confidence become liabilities.

There’s still a window of opportunity to de-escalate

Yet this crisis remains prospective. While very little time is left before the first 10 per cent tariff tranche is due to take effect, there is still a narrow opportunity to de-escalate, to disentangle trade from territorial politics, and to reaffirm the principle that economic instruments should not be used to compel political submission.

If that opportunity is missed, the consequences will extend far beyond this dispute. Tariffs will have been redefined - from tools of economic policy into instruments of geopolitical intimidation. In such a world, predictability gives way to power, alliances to anxiety, and rules to raw leverage.

(Views are personal, and do not represent the stance of this publication.)