Poland's memory institute accuses Ukraine of disinformation over Volhynia framing

On the morning of 10 June 2026, Poland's Institute of National Remembrance (IPN) escalated an unusually sharp public dispute with its Ukrainian counterpart, accusing the Ukrainian Institute of National Remembrance (UINR) of spreading disinformation about the wartime massacres in Volhynia and Eastern Galicia. The Polish institution published a video statement arguing that "memory of the victims begins with naming the perpetrators," and that commemoration without perpetrator identification is incomplete historical record. The Ukrainian side had recently issued its own assessment of the same events. The two institutions, both state-funded bodies with mandates to manage the historical memory of their respective countries, are now publicly contradicting each other on an episode that continues to weigh on Polish-Ukrainian relations eight decades after the killings.
The dispute is not a minor academic quarrel. It sits at the intersection of wartime atrocity, contemporary alliance politics, and the long-running question of how the two neighbours narrate a shared and violent past while fighting a third neighbour, Russia, on Ukrainian soil.
What the Polish Institute is saying
According to the IPN's 10 June 2026 video, reliable historical memory requires two things: commemoration of the victims, and honest identification of the perpetrators. Without the second, the Polish institution argues, there is no full memory of the events. The video accuses the UINR of disinformation. It does not soften the framing.
The institutional weight behind the statement matters. IPN is a Polish state body established to investigate and publicise both Nazi and Soviet crimes on Polish territory, and to research Polish resistance and collaboration. It is not a fringe outlet; it is the official Polish voice on contested twentieth-century history. When it puts out a video accusing a foreign state institution of disinformation, the diplomatic signal travels beyond the historical debate.
The video frames the dispute as one of method. The UINR's recent publication, in the Polish reading, is said to blur the line between Polish victims of Ukrainian nationalist violence and Ukrainian victims of Polish and German violence, an approach that risks treating the events as symmetrical. IPN's counter is that asymmetry is the historical fact: the organised, mass killing of Polish civilians in Volhynia and Eastern Galicia between 1943 and 1945 was carried out principally by the Ukrainian Insurgent Army (UPA) and affiliated formations, and that this responsibility is established in the existing scholarly record.
What the Ukrainian Institute is saying
The UINR, for its part, has not accepted the Polish framing. Its recent communications, referenced in the IPN video, are described by Warsaw as downplaying the organised character of the 1943–45 violence and emphasising Polish retaliatory actions against Ukrainian civilians. Kyiv's broader argument, familiar from years of bilateral dialogue, is that the Volhynia tragedy must be read inside the context of occupation, displacement, and mutual civilian suffering, and that the Polish narrative has historically underweighted Polish complicity in earlier and contemporaneous anti-Ukrainian violence.
Both positions are stated here as they appear in the public record. The contested ground is not whether civilians were killed; the scale of Polish civilian deaths, in the high tens of thousands to above one hundred thousand depending on the count, is not seriously disputed between the two institutes. The contested ground is interpretive: who carried out the killings, how organised they were, and how they should be ranked against other wartime and interwar violence in the region. That interpretive disagreement is what the IPN video is calling disinformation, and what the UINR would presumably call legitimate contextualisation.
Why this row matters inside the alliance
The two governments remain partners. Poland is one of Ukraine's most vocal backers, hosts a large Ukrainian refugee population, and has been among the leading European suppliers of military equipment to Kyiv since 2022. That alignment makes the public dispute uncomfortable for both sides, but it does not make it anomalous. Memory diplomacy between Warsaw and Kyiv has been running for years, surfacing most visibly around anniversaries of the 1943 Volhynia massacre and around Polish parliamentary resolutions on the events.
The structural read is straightforward. States at war are entitled to control the historical narrative that surrounds them, and Poland, as the invaded party's eastern neighbour, is doing what states do. The asymmetry of the present, where Poland supports a Ukraine fighting for its survival, sits on top of a deeper asymmetry of the past, where the dominant Polish civilian victims of the Volhynia violence were killed by a Ukrainian nationalist formation whose political heirs are now part of the Ukrainian wartime state. That tension is not solvable by joint communiqués. It is the kind of disagreement that has to be carried.
There is a counter-reading worth naming. Warsaw's framing can be read as leverage: at a moment when Poland is materially indispensable to Ukraine, IPN's escalation could be aimed at a domestic Polish audience that has grown fatigued with the cost of support, and at a European audience that is itself divided on how to remember mid-twentieth-century nationalist violence. The counter to that reading is that the Polish institute has a long institutional record on these events predating 2022, and that its position does not appear timed to the war. Either reading is consistent with the facts in the public record; the sources do not settle which intent predominates inside IPN's leadership.
What remains uncertain
Three things stay genuinely open. First, the UINR has not, in the materials available on 10 June 2026, published a direct on-the-record response to the IPN video, so the Ukrainian institutional counter-frame is partially inferred from its earlier publications. Second, the question of how the Polish government, as distinct from IPN, chooses to handle the dispute is not addressed in the available sources. The two are not the same actor. Third, the broader question of whether the dispute produces any concrete policy outcome, a parliamentary statement, a downgrade in bilateral commemoration, a shift in Polish public messaging on Ukraine support, is not knowable from the material in hand. The video is a signal; the response is the next data point.
The honest position is that two state memory institutions are now in open conflict over how to describe events that took place between 1943 and 1945, that the conflict is being conducted in public, and that the wider alliance will have to absorb it without breaking. The historical argument is real. So is the strategic one. They are not, on the evidence available, easy to separate.
This article draws on the Polish Institute of National Remembrance's 10 June 2026 video statement and the related Telegram wire from @ekonomat_pl. The UINR's direct response to the video, and the Polish government's reaction, are not in the public materials available at the time of writing and will be added as they appear.
Wire provenance
This editorial synthesis draws on the following public wire/social posts:
- https://t.me/ekonomat_pl
- https://t.me/ekonomat_pl
- https://en.wikipedia.org/wiki/Institute_of_National_Remembrance
- https://en.wikipedia.org/wiki/Volhynia_massacre