PiS Links Ukraine Bid to Volhynia

Poland’s opposition has found a lever in a place where Ukraine is vulnerable: the EU’s enlargement machinery. PiS, the Law and Justice party, is taking the memory of wartime killings in Volhynia out of the realm of history and commemoration, and pushing it into the accession process, where every member state gets repeated chances to say no.

Jarosław Kaczyński, the PiS leader, says Ukraine cannot join the EU while tolerating what he describes as the glorification of Stepan Bandera, the wartime Ukrainian nationalist associated with the mass killing of Poles. Przemysław Czarnek, a PiS parliamentarian, has announced a draft resolution formally opposing Ukraine’s EU membership on that basis (RMF24).

The history is real. In 1943 and 1944, Ukrainian nationalist formations killed tens of thousands of Polish civilians in Volhynia, now in western Ukraine. Families were burned in their homes and churches. For many Poles, the matter has never been settled: bodies remain unexhumed, and Ukraine’s public honouring of Bandera as a national hero tears the wound open again at every anniversary. PiS is now turning that wound into a condition for Ukraine’s place in Europe.

Why the Veto Machine Matters

The mechanism matters more than the speechmaking. Under Article 49 of the EU Treaty, a new member can join only with unanimous approval in the Council, where national governments vote, and ratification by every national parliament (EUR-Lex, Council). Accession talks are broken into thematic blocks known as "clusters", and member states must approve each one as it opens and closes. Poland does not have to wait for a final treaty in the Sejm. It can slow or block Ukraine much earlier.

The Commission’s enlargement methodology also gives political weight to good-neighbourly relations (European Commission). That is not a hard legal test in the way democracy or rule-of-law criteria are. But it gives a government the language it needs to dress a bilateral grievance as a European concern.

Hungary has already shown the method. Budapest allowed preparatory work on a Ukrainian accession cluster while making clear that preparation is not the same as opening, because the later steps still require unanimity (Világgazdaság, Euronews). Hungary’s complaint is about minority language rights in Transcarpathia, not Volhynia. The tactic is the same: unanimity turns a national dispute into a European gate.

Who Pays

PiS wins at home. By tying wartime memory to accession, it leaves Prime Minister Donald Tusk with an ugly choice: look indifferent to Polish victims, or risk weakening support for Ukraine. Tusk has warned the opposition not to "play with fire" (Respublika). The greater danger for Kyiv is that demands for exhumations and dignity for victims become a cross-party position in Warsaw. What begins as opposition pressure can harden into state policy.

Ukraine pays the heavier price. Its EU path is already slow, and it now faces a grievance older than the Union itself. German coverage has raised the idea of "associated membership", giving Ukraine economic integration before full accession settles its veto problems (Euronews DE). The revived Weimar Triangle, the diplomatic format linking Berlin, Paris and Warsaw, may help manage the politics. It cannot change the Treaty’s unanimity rule (IPG Journal).

Lithuanian analysis has called the clash dangerous because it comes just as 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. Kyiv is treating this as a strategic problem, not a domestic Polish performance.

The Judgment Tusk Owes

Poland has not blocked Ukraine. PiS is not in government. The veto remains potential rather than actual. But the EU’s enlargement system allows bilateral disputes to become European 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 dignity for the dead. It is weakest when it asks Ukraine to accept Poland’s preferred national narrative.

Tusk now has to decide whether to contain PiS’s escalation or absorb it into Poland’s official position. If he absorbs it, Ukraine’s EU path becomes hostage to national memory politics across Europe, governed less by the accession criteria Brussels designed than by a rolling queue of historical grievances.