Commentary

A Strategic Vacuum

Washington’s withdrawal affects institutions across four critical domains: climate governance, conflict prevention, democracy and rule of law, and hybrid security. Many of the targeted organisations, such as the UN Framework Convention on Climate Change (UNFCCC), the Venice Commission, the International Institute for Democracy and Electoral Assistance (IDEA), and the European Centre of Excellence for Countering Hybrid Threats, are not symbolic forums. They are operational hubs that generate shared standards, early warning mechanisms, and collective responses.

By exiting these bodies, the United States is not simply “saving taxpayer money.” It is creating strategic vacuums that will not remain empty. In international politics, absence does not lead to neutrality; it invites substitution. And the actors most willing to fill these spaces are authoritarian powers with fundamentally different visions of order, sovereignty, and human rights.

Implications for Europe and Its Eastern Neighbours

For Europe, the implications of U.S. disengagement are immediate and uncomfortable. On one hand, European states must assume a greater share of financial, political, and institutional responsibility within multilateral frameworks that have been weakened by Washington’s retreat. On the other hand, they must confront the reality that American reliability—long the cornerstone of Europe’s external security environment—has become increasingly conditional, even within NATO’s framework. None of this is entirely new to European policymakers, but the scale and speed of the U.S. recent exit from dozens of international bodies have transformed a long-acknowledged risk into a concrete strategic challenge.

The Trump administration treats climate governance as an ideological burden, while Europe sees it as a security concern. The U.S. withdrawal from the Paris Agreement and the UNFCCC undermines global climate coordination. For Europe, climate instability is not abstract: it fuels migration pressures, resource conflicts, political radicalisation, and instability in regions directly adjacent to the EU. By abandoning the foundational treaty of global climate diplomacy, the U.S. signals that it no longer views climate-induced instability as a strategic concern. Europe does and will pay the price if climate governance fragments into competing blocs.

Equally alarming is the withdrawal from democracy-focused bodies, including the Venice Commission, International IDEA, and other UN mechanisms. These organisations safeguard constitutional standards, electoral integrity, and judicial independence, particularly in fragile democracies across Eastern Europe and the Western Balkans. Weakening them directly benefits regimes that succeed on legal ambiguity, captured institutions, and manipulated narratives of “sovereign democracy”.

For countries such as Georgia, Moldova, Ukraine, and Armenia, U.S. disengagement carries serious consequences. These states exist in a strategic grey zone: formally sovereign, yet constantly pressured by authoritarian powers seeking to reverse their Euro-Atlantic orientation. Institutions like the Venice Commission and International IDEA have served as external safeguards, providing legal standards, electoral guidance, and political legitimacy during periods of democratic stress. Their weakening does not simply reduce technical assistance; it emboldens domestic autocratic actors who argue that democratic norms are imposed by foreign forces, such as the EU bureaucracy and the “deep state,” that these norms do not serve national interests, and that they undermine states’ sovereignty.

Particularly, in Georgia, where democracy is already under effective pressure, the government has spent recent years portraying Europe as weak and corrupt. Reduced U.S. engagement in international institutions gives the ruling Georgian Dream party more reason to justify suspending EU integration and abandoning democratic reforms. More than any formal withdrawal, this perception is precisely what the Kremlin and the ruling Georgian Dream seek to weaken ties with Europe and the democratic world.

French President Emmanuel Macron was among the first European leaders to publicly respond to Washington’s retreat from global governance. He warned that the U.S. is “breaking free from international rules” and “gradually turning away” from some allies, leaving multilateral institutions less effective. Macron’s call for Europe to consolidate its regulatory and strategic frameworks signals a growing recognition that the continent must step into the gaps left by a less engaged America to protect stability, norms, and its eastern neighbours.

Hybrid Warfare and Europe’s Eastern Flank

Russia’s strategy in the region has never depended exclusively on military force. It also operates effectively through disinformation, institutional capture, energy leverage, election interference, and the systematic erosion of public trust. Therefore, for Eastern Europe, security is not defined solely by military means or Article 5 guarantees. It is equally about resilience: legal, informational, economic, and societal. The U.S. exit from the European Centre of Excellence for Countering Hybrid Threats and related forums addressing cybersecurity, disinformation, and resilience weakens precisely the layers of defence that Eastern European states rely on most. This raises a serious concern. NATO may still deter open aggression (though even that cannot be taken for granted any more). But without robust multilateral institutions that support societal resilience, democracies remain vulnerable well before any military approaches their borders.

A Return to Power Politics and What Comes Next for Europe

The Trump administration frames this shift as a return to realism, rejecting “End of History” illusions in favour of the national interest. Yet paradoxically, dismantling multilateral institutions accelerates a return to precisely the kind of unrestrained power politics that realism itself warns against. Institutions are not expressions of idealism alone; they are instruments for managing competition, preventing escalation, and ensuring predictability. Europe, born itself from the ruins of power politics, remembers this lesson acutely.

The central question is no longer whether Europe can replace the United States. Clearly, it cannot; however, it may prevent institutional collapse as it adapts to a less engaged America. Achieving this will require greater European investment in multilateral institutions, political unity in defending the norms of democracy, the rule of law, and international law, strategic patience in maintaining cooperation with U.S. actors beyond the executive branch, and a sober recognition that sovereignty without institutions leads not to strength but to fragmentation.

The U.S. still remains a vital ally, especially within NATO. Yet Europe and its partners should already have been preparing, well before this moment, for a world in which American participation in global governance is selective, transactional, and reversible. The cost of delay is felt most acutely along Europe’s eastern flank, where weakened institutions, uncertain guarantees, and stalled reforms create openings for authoritarian influence and undermine the credibility of the European project itself.

Effect on the EU Enlargement

EU enlargement has always rested on a basic assumption: that democratic reform, though difficult, would be rewarded by a stable, rules-based international environment backed by strong transatlantic alignment. The current U.S. retrenchment challenges this assumption.

If global institutions that monitor elections, support judicial reform, protect human rights, and manage post-conflict transitions are weakened, candidate countries face a harsher reality. Reform becomes politically much more costly, while external guarantees appear increasingly uncertain. This creates space for anti-reform elites to argue that alignment with Europe delivers obligations without real protection.

For the European Union, this is a critical moment. Enlargement can no longer be seen as a purely technical process separate from geopolitics. It is now a strategic tool that must compensate for reduced U.S. engagement by sending clear political signals to the candidate countries, offering stronger integration paths, and enforcing conditions with credibility. If the EU hesitates, the vacuum will not remain empty.

Conclusion:

The American withdrawal from 66 international organisations is not an act of isolation; it is an act of selective disengagement with systemic consequences. For Europe, the challenge is no longer how to complement American leadership, but how to preserve global stability when that leadership retreats. This test will define Europe’s strategic maturity over the next decade.

The United States still remains a crucial ally, particularly within NATO. But Europe can no longer base its security and governance on the assumption that American engagement is guaranteed. U.S. participation in global governance has become conditional, transactional, and reversible, and Europe should have adapted to this reality long before now. Nowhere are the costs of delay more visible than along Europe’s eastern flank, where weakened institutions, uncertain guarantees, and stalled reforms open the door to authoritarian influence and steadily undermine the credibility of the European project itself.

9 January 2026