Dublin, the Enlargement File, and the Return of Ireland's Brussels Hour

Commissioner Lahbib's appearance before the Irish EU Affairs Committee in Dublin on 8 October was, on paper, a courtesy call. A member of the College pays tribute to the incoming presidency, speaks warmly of shared values, invokes the security of the continent. The pleasantries are real. The subtext is harder.

Ireland takes the rotating presidency at the moment the Union is attempting to do three things at once that have never previously been done together: finance a war on its eastern border, open accession negotiations with a cluster of candidate states whose readiness varies wildly, and keep the single market from fragmenting under the weight of national security carve-outs. The Commissioner for Preparedness and Crisis Management does not travel to Dublin to discuss ecolabels. She travels to make sure the presidency understands which files cannot slip.

Consider what Dublin now holds in its in-tray. The enlargement cluster openings for Ukraine and Moldova, blocked for months by one capital's veto on procedural grounds, require a presidency willing to spend political capital on unanimity management. Ireland has historically been good at this — small-state diplomacy, patient bilateral work, no grand gestures to defend afterwards. It is also, however, a presidency inheriting a Council in which the familiar coalitions have dissolved. The Franco-German engine is spluttering. The frugal northern bloc has lost its coherence since the Dutch coalition collapse. The southern flank is preoccupied with migration financing. Nobody is quite sure who speaks for the middle anymore.

This matters for the operative legislative pipeline. The defence industrial package, the next tranche of Ukraine financing through the Reform and Growth Facility, the review clauses in the AI Act implementing acts, and — the file nobody wants to discuss in public — the mid-term revision of the Multiannual Financial Framework all land during the Irish six months. Each of them is a compromise waiting to be written. The presidency does not draft; the Commission drafts. But the presidency decides which drafts reach the Council table and in what order. That sequencing power is the quiet lever of every rotating chair, and it is the one Dublin will be judged on in June.

There is also the enforcement question, which is where my readers in the Gulf should pay attention. Commissioner Kos's speech in Sofia the same day, on Corridor VIII, made explicit what has been implicit for a year: the Union is now treating trade corridors as security infrastructure. That reframing travels. When Brussels designates a corridor as strategic, it unlocks instruments — foreign subsidies screening, FDI review, critical raw materials obligations — that reach into the contracting decisions of Gulf sovereign funds and port operators. A DP World or a Mubadala signing into a Balkan logistics joint venture in 2026 is not signing the same contract it would have signed in 2023. The due diligence overlay has thickened. The presidency that holds the pen on the implementing acts for the Critical Raw Materials Act strategic project list — Ireland, from January — effectively decides whose investments get frictionless treatment and whose get a second look.

Lahbib's Dublin speech was careful on all of this. She spoke of security, of preparedness, of the Union's capacity to act. She did not spell out the trade-offs. Presidencies rarely want them spelled out in advance; it narrows their room to manoeuvre. But the trade-offs are visible to anyone reading the Council conclusions of the last three summits in sequence. Enlargement financing competes with cohesion financing. Defence industrial autonomy competes with transatlantic procurement commitments. Corridor security competes with the Union's stated preference for open strategic autonomy, which was always more preference than doctrine.

Dublin's advantage is that it has done this before, in 2013, and it did it well. Its disadvantage is that the Union it chaired then is not the Union it chairs now. The institutions are the same. The muscle memory is not.

What to watch between now and the December European Council: whether the Irish permanent representation signals early which enlargement cluster it intends to prioritise, and whether the Commission's next tranche of implementing acts on strategic projects arrives before or after the presidency formally begins. The sequencing will tell you everything about who, in this cycle, is actually holding the pen.