PiS ties Ukraine’s EU bid to Volhynia

Poland's main opposition party, PiS (Law and Justice), has moved the memory of wartime killings in Volhynia from historical debate into the EU accession process, where every member state holds repeated veto points over Ukraine's path to membership.

Jarosław Kaczyński, the PiS leader, argued Ukraine cannot join the EU while tolerating what he called glorification of Stepan Bandera, the wartime Ukrainian nationalist linked to mass killings of Poles. Przemysław Czarnek, a PiS parliamentarian, announced a draft resolution formally opposing Ukraine's EU membership on those grounds (RMF24).

The grievance is not invented. In 1943–44, Ukrainian nationalist formations killed tens of thousands of Polish civilians in Volhynia, a region now in western Ukraine. Families were burned in homes and churches. For many Poles, this is unfinished business: bodies remain unexhumed, and Ukraine's public commemoration of Bandera as a national hero reopens the wound with each anniversary. PiS is now converting that wound into a condition for Ukraine's EU membership.

Why the Veto Machine Matters

Under Article 49 of the EU Treaty, accession requires unanimous approval in the Council (where each government votes) and ratification by every national parliament (EUR-Lex, Council). Accession talks are divided into thematic blocks called "clusters," and member states must approve each one as it opens and closes. Poland can therefore withhold consent at multiple stages, long before a final treaty ever reaches the Sejm.

The Commission's enlargement methodology also treats good-neighbourly relations as politically relevant (European Commission). This is not a binding legal criterion, but it gives any country political vocabulary to dress a bilateral complaint as an EU-level concern.

Hungary has already shown how this works. Budapest allowed preparatory work on a Ukrainian accession cluster while stressing that preparation is not the same as opening, because later steps still require unanimity (Világgazdaság, Euronews). Hungary's complaint is different (minority language rights in Transcarpathia), but its method is the same: unanimity converts a national grievance into a European gate.

Who Pays

PiS gains domestically. By linking wartime memory to accession, it forces Prime Minister Donald Tusk into a bind: appear soft on Polish victims, or risk fracturing support for Ukraine. Tusk warned the opposition not to "play with fire" (Respublika). The deeper risk is that demands around exhumations and victims' dignity become cross-party consensus in Warsaw, turning an opposition stunt into a lasting obstacle to Ukraine's membership bid.

Ukraine absorbs the heaviest cost. Its EU path, already slow, now faces a grievance that predates the Union itself. German coverage raised "associated membership" as a way to give Ukraine economic integration before full accession resolves its veto problems (Euronews DE). The revived Weimar Triangle (a diplomatic format linking Berlin, Paris and Warsaw) could manage the politics, though it cannot rewrite the Treaty's unanimity rule (IPG Journal).

Lithuanian analysis called the collision dangerous precisely because it lands while Poland, Lithuania and Ukraine are trying to hold together against Russia (LRT). According to LRT, Ukrainian intelligence chief Budanov accused Poland of preparing "a whole series of immature actions" to escalate the dispute, a sign that Kyiv views this as a strategic threat, not a parliamentary sideshow.

The Judgment Tusk Owes

Poland has not blocked Ukraine. PiS has not formed a government. The veto is potential, not actual. But the EU's enlargement design lets bilateral disputes become EU conditions whenever a member state frames its demand in the language of values and rights. Poland's case is strongest when it asks for exhumations and victims' dignity. It is weakest when it demands Ukraine adopt Poland's preferred national narrative.

Tusk now has to decide whether to contain PiS's escalation or absorb it as Poland's official position. If he absorbs it, Ukraine's EU path becomes hostage to national memory politics across the continent, governed by a succession of historical grievances rather than the criteria Brussels designed for accession.