How Is the War in Ukraine Shaping European Law?
Why It Matters
The war‑driven legal shifts reveal both the EU’s capacity for rapid, collective action and its constitutional vulnerabilities, informing policymakers about needed reforms to safeguard democratic legitimacy and strategic autonomy.
Key Takeaways
- •EU treated Ukraine war as first true wartime test since its founding.
- •Treaties acted as a “living constitution,” enabling unprecedented policy actions.
- •Structural limits hindered EU’s ability to fund and coordinate defense.
- •Legal gaps raised human‑rights concerns over sanctions and judicial review.
- •War exposed need to balance EU power with robust constitutional checks.
Summary
The event introduced Professor Federico Fabbrini’s new monograph, *The EU Constitution in Time of War*, which examines how the European Union has legally responded to Russia’s aggression against Ukraine. Fabbrini argues that the war represents the EU’s first genuine wartime challenge, forcing a peacetime bloc built on the Kantian ideal of perpetual peace to confront hard‑power realities traditionally left to NATO.
The book maps the EU’s unprecedented actions across five policy domains—foreign affairs and defence, fiscal policy, justice and home affairs, energy and industrial strategy, and enlargement. By flexibly interpreting treaty provisions, the Union launched ammunition‑production programmes, imposed its most severe sanctions—including secondary sanctions and a new federal crime for sanction violations—and raised over €100 billion of common debt to fund Ukraine’s defence. These measures illustrate a “living constitution” that can be stretched in crisis.
Fabbrini highlights constitutional tensions: treaty clauses sometimes block decisive action, such as prohibiting the EU budget from financing military operations, while in other areas the lack of robust checks permits measures that skirt human‑rights safeguards, like limited judicial review of sanctions affecting free speech and legal assistance. He cites Lincoln’s warning that a constitution should not be a “suicide pact” and Cicero’s admonition that laws must not be silent in war, underscoring the dual failures observed.
The analysis signals that the EU must reconcile its newfound wartime powers with stronger constitutional safeguards to preserve rule‑of‑law credibility and integration. Future crises will test whether the Union can institutionalise these flexibilities without eroding democratic oversight, shaping the trajectory of European governance for years to come.
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