For much of the post-war era, Europe’s relationship with the United States rested on a form of strategic comfort: security outsourced to Washington, markets anchored to transatlantic openness, and political alignment reinforced by shared institutions. That comfort is now eroding. Donald Trump’s return to the White House has not created this shift, but it has stripped away the remaining illusions that it could be postponed.
The question Europe faces is not whether the transatlantic relationship is changing — that is already evident — but whether Europe is capable of redefining itself without the stabilising assumptions that once underpinned its prosperity and security.
Trump as accelerator, not origin
Trump’s transactional view of alliances, his scepticism towards NATO, and his willingness to weaponise trade have undoubtedly unsettled European capitals. Yet focusing too narrowly on Trump risks misdiagnosing the problem. The structural drift predates him.
American strategic attention has been shifting toward Asia for more than a decade. US domestic politics have grown less tolerant of underwriting European security indefinitely. Meanwhile, globalisation — the economic glue of the post-Cold War order — has fragmented under the pressures of supply-chain shocks, technological rivalry and geopolitical conflict.
Trump’s presidency does not reverse these trends; it accelerates them. He forces Europe to confront realities that were already forming but politically inconvenient to acknowledge.
Europe’s dependency problem is internal
Europe’s vulnerability stems less from Washington’s unpredictability than from its own unresolved contradictions.
Economically, the EU remains a single market without a unified industrial strategy. It competes globally while fragmenting internally on energy, capital markets and innovation policy. Defence spending has increased since Russia’s invasion of Ukraine, yet military capability remains dispersed, duplicative and reliant on American systems.
Politically, Europe speaks the language of “strategic autonomy” while struggling to define its limits. Autonomy in what, from whom, and at what cost? These questions often dissolve into institutional caution or national vetoes.
The result is a continent that wants influence without power concentration, independence without fiscal integration, and security without strategic risk.
Security: autonomy without illusion
Nowhere is this tension clearer than in defence. Europe cannot realistically replace US security guarantees in the near term. Nuclear deterrence, intelligence infrastructure and rapid power projection remain overwhelmingly American.
Yet full dependence is no longer politically or strategically tenable. The more plausible path is not independence but capacity correction: Europe reducing its most acute vulnerabilities rather than seeking self-sufficiency.
This includes deeper defence procurement coordination, genuine interoperability, and a clearer division of labour within NATO — not as an alternative to the alliance, but as a more credible European pillar within it.
Economics: diversification, not decoupling
The same logic applies economically. Europe is unlikely — and arguably unwilling — to decouple from the US market. The transatlantic economy remains deeply interwoven. But diversification is already underway.
Trade agreements with non-Western partners, industrial policy aimed at critical technologies, and efforts to reduce reliance on single suppliers reflect a shift from efficiency to resilience. This is not a clean ideological turn but a pragmatic adjustment to a more volatile world.
The challenge is that diversification requires coordination, capital and political discipline — all areas where Europe historically struggles to move at speed.
The strategic choice Europe cannot avoid
Europe now stands between three imperfect options:
- Preserve dependence, accepting diminished influence in exchange for short-term stability.
- Pursue autonomy rhetorically, while remaining structurally constrained — a strategy that risks credibility erosion.
- Accept partial power consolidation, acknowledging that strategic capacity requires political trade-offs Europe has long avoided.
Trump’s presidency does not dictate which path Europe takes. It merely removes the luxury of deferral.
A slower, quieter transformation
Europe is unlikely to respond with dramatic rupture. Its nature favours gradualism. But gradualism should not be mistaken for inertia. The recalibration underway — in defence planning, trade strategy and political rhetoric — reflects a recognition that the old equilibrium no longer holds.
The deeper question is whether Europe can align its ambitions with its institutional reality. Strategic adulthood does not require abandoning alliances, but it does require accepting responsibility for their sustainability.
Trump has accelerated the reckoning. The outcome, however, will be determined in Brussels, Berlin, Paris and beyond — not in Washington.
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