Hungary Loses Bid to Challenge EU-Ukraine Arms Funding

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September 14, 2026

With the EU courts back from their summer recess, the General Court returned to a politically charged question: how far can judges scrutinise decisions taken under the EU’s foreign and security policy? On September 9^th, it dismissed Hungary’s challenge to a decision allocating revenues generated by immobilised Russian assets to military support for Ukraine. The Court did not decide whether Hungary had been lawfully excluded from the vote. Instead, it held that the dispute fell outside the jurisdiction of the EU courts because the allocation concerned political or strategic choices under the Common Foreign and Security Policy (CFSP).

The dispute concerned the European Peace Facility (EPF), an off-budget instrument through which Member States finance EU military operations and assistance measures that cannot be charged to the regular EU budget. After Russia’s full-scale invasion, the EPF became one of the EU’s central channels for military support to Ukraine.

In 2024, the Council created a mechanism to use extraordinary profits generated by immobilised Russian Central Bank assets. These profits arise because restrictions on transactions with the Russian Central Bank created large cash balances at central securities depositories, which in turn generated unexpected revenues. The underlying Russian assets themselves remain immobilised; the mechanism concerns the resulting net profits rather than confiscation of the principal.

Under the original arrangement, 90% of the contribution was allocated to the EPF for military support to Ukraine. Hungary voted for the decision creating the revenue mechanism but constructively abstained from the subsequent decision governing allocation through the EPF. When the EPF Committee later decided how the first instalment would be spent, Hungary was consequently excluded from the vote.

Beyond the Court’s Reach

Hungary challenged that exclusion, arguing that the voting procedure violated Article 31(1) TEU, the EPF’s own rules and broader principles including the equality of Member States, democratic functioning and the rule of law.

The central issue, however, became jurisdiction. In its 2024 KS and KD judgment, the Court of Justice developed this distinction in a case concerning the EU’s rule-of-law mission in Kosovo (EULEX). Relatives of people who had disappeared or been killed during the Kosovo conflict sought damages over alleged failures by the mission to investigate their cases and provide effective remedies. The Court rejected the idea that everything done within a CFSP mission automatically falls outside judicial review. Decisions over the resources allocated to the mission or the scope of its executive mandate were political or strategic choices and therefore beyond the EU courts’ jurisdiction. By contrast, matters such as staffing, procedural rules and individual remedial measures were treated as administrative management that the courts could review. That distinction became the test the General Court applied to Hungary’s challenge.

The General Court determined how the first instalment would finance military equipment for Ukraine, including ammunition and artillery systems, air-defence systems and equipment procured from the Ukrainian defence industry. It also implemented strategic orientation provided by the Political and Security Committee.

Hungary attempted to separate the procedure from the substance of that foreign-policy decision. The Court rejected that argument too. Its lack of jurisdiction extends to the “external legality” of strategic CFSP measures, meaning that a challenge to how such a decision was adopted does not by itself bring the dispute within judicial review.

Why it matters

For policymakers, the ruling clarifies where legal accountability gives way to political discretion. Once a CFSP measure is classified as a political or strategic choice, Member States cannot assume that procedural objections will receive separate judicial review. In practice, disputes over voting rights, participation and implementation may have to be settled primarily inside the Council and CFSP machinery.

That makes the internal design of instruments such as the EPF more important. Constructive abstention has helped the EU move ahead when unanimity would otherwise block action, but the Hungary case shows that standing aside at one stage can also reduce a Member State’s influence over subsequent implementation. For governments, the choice between abstaining, blocking and participating therefore carries consequences beyond the initial vote.

The case also illustrates the trade-off created by the EU’s growing security role. The EPF’s financing of lethal assistance to Ukraine marked a major expansion of the EU as a security actor. As these instruments become more operational and politically consequential, the Treaty’s CFSP carve-out means that some of the decisions with the greatest strategic impact may receive comparatively limited judicial scrutiny. This places more weight on political safeguards, clear voting rules and transparent decision-making before measures are adopted.

The immediate funding mechanism has already moved on. Following repeated difficulties around the EPF, the EU redirected most future extraordinary revenues towards the Ukraine Loan Cooperation Mechanism, reducing the EPF share from 90% to 5%. But the institutional lesson remains. The more the EU relies on flexible foreign-policy instruments to act despite internal disagreement, the more important it becomes to resolve questions of participation and accountability at the political stage, because courts may not provide a second forum afterwards.

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