On Friday afternoon, all 27 EU governments signed off on a decision that will look, on 14 July, like a modest technical ceremony in Brussels: the formal opening of cluster six of Ukraine's and Moldova's EU accession negotiations, according to Euronews. EU ambassadors have already endorsed the common position. It is not the finish line. It is not even the halfway point in the sense that matters most. But it is the first crack in a logjam that has held since Hungary began blocking progress two years ago, and it is worth walking through exactly how this process works — because the mechanics tell you more about what happens next than the headline does.

How the cluster system actually works

EU accession is not one negotiation but 33 policy chapters, bundled by the European Commission into six thematic clusters — a reform introduced to make enlargement more manageable after the sprawling, chapter-by-chapter marathons of earlier rounds. A country cannot pick and choose: an entire cluster opens at once, and only after the Commission judges that the candidate is technically ready and, critically, only after every one of the 27 member states agrees. That unanimity requirement is the entire story of the last two years. It only takes one government, for whatever reason, to freeze the process indefinitely — which is precisely what happened with Hungary's veto.

Cluster six, the one opening on 14 July, covers external relations — foreign, security and defence policy, trade, and how a candidate aligns its diplomacy with the EU's own. According to Euronews, it was considered the easiest of the remaining clusters to unblock, in part because Ukraine's and Moldova's foreign policy is already tightly synchronised with Brussels by necessity of the war. The European Commission has determined both countries are technically ready to open all remaining clusters — the bottleneck was never technical readiness, but political unanimity.

What's still blocked, and why it matters

Four clusters remain frozen, per Euronews: cluster two (internal market), cluster three (competitiveness and inclusive growth), cluster four (green agenda and sustainable connectivity), and cluster five (resources, agriculture and cohesion). These are the clusters with real budgetary teeth — agricultural subsidies, cohesion funding, single-market rules — the ones that touch existing member states' interests most directly, which is exactly why they were left for later rather than opened alongside cluster six. Euronews reports that the target of opening all clusters by July will not be met, and that the remaining four will be tackled one by one starting in September.

The Hungary factor, still unresolved

The reason this is happening at all traces back to Budapest. Hungarian Prime Minister Péter Magyar lifted his two-year veto on Ukraine's accession process in early June, according to Euronews. But lifting the veto is not the same as endorsing the timeline. Magyar has voiced reservations that moving quickly would amount to what he called "fast-tracked accession," arguing it would put Western Balkan candidates — Serbia, Montenegro, North Macedonia, Albania — at a disadvantage after years of comparatively slower progress. That framing gives Budapest a ready-made justification for slowing the pace on any of the four remaining clusters without having to reopen the veto fight directly.

It's important that we keep the momentum up.

EU diplomat, quoted by Euronews

What to watch next

  • Whether the four remaining clusters open on schedule from September, or whether Hungary's Western Balkans argument becomes a new lever for delay
  • How Serbia, Montenegro and other Western Balkan candidates react to Magyar's framing — expect pressure on Brussels to show parallel movement on their own stalled files
  • Whether cluster two (internal market) becomes the next flashpoint, given its direct implications for agricultural and cohesion spending that touch current member states' budgets
  • Any change in Hungary's domestic political calculus ahead of its own election cycle, which has repeatedly shaped Budapest's EU enlargement positioning