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Explainer-Why are Poland and Ukraine at odds about their history?

Published by Global Banking & Finance Review

Posted on June 8, 2026

3 min read

· Last updated: June 8, 2026

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Poland and Ukraine’s Historical Disputes: Understanding Ongoing Tensions

Key Issues Shaping Poland-Ukraine Relations

WARSAW, June 8 (Reuters) - Poland is weighing whether to strip Ukrainian President Volodymyr Zelenskiy of its top honour for renaming an army unit after Ukrainian nationalist insurgents who massacred Poles in World War Two.

The decision caused a chorus of outrage in Warsaw and led President Karol Nawrocki to call for Zelenskiy to be stripped of the Order of the White Eagle, which he was awarded in 2023.

Here's how Poland's and Ukraine's rival interpretations of their complex, shared 20th-century history weigh on current relations:

The Ukrainian Insurgent Army and Historical Memory

UKRAINIAN INSURGENT ARMY

Zelenskiy’s Decree and Its Implications

Zelenskiy signed a decree recognising a Ukrainian combat unit's contribution to the fight against Russia by naming it after the Ukrainian Insurgent Army (UPA).

UPA’s Role in World War Two

During and after World War Two, when Ukraine belonged to the Soviet Union, the UPA fought against the Red Army, for a time allying itself with the Nazi German invaders, to seek Ukrainian independence.

Interpretations of the UPA’s Legacy

Ukraine says the naming of the unit carries no "anti-Polish intent" and was chosen by soldiers who wanted to commemorate others who had fought against Moscow.

The Volhynia Massacres

But the UPA was also involved in the Volhynia massacres carried out by Ukrainian nationalists from 1943 to 1945, in which Warsaw says around 100,000 ethnic Poles were killed. Thousands of Ukrainians also died in reprisal killings.

Polish historians view the massacres as a genocide intended to prevent a post-war Polish state claiming sovereignty over Ukrainian-majority areas that had been part of Poland between the two world wars.

Kyiv rejects the term, saying that thousands of Ukrainians were also killed in what was a complex conflict.

The events have been a bone of contention for decades, even as Poland has strongly backed Ukraine in its fight against Russia's invasion, taking in almost a million refugees and supplying weapons. 

Forced Relocations After World War Two

In 1947, within new borders after World War Two, Poland forcibly relocated some 140,000 ethnic Ukrainians and people identifying as members of the small Lemko ethnic group from southeastern Poland to territories it had regained from Germany. The aim was to cut support for underground UPA groups in Poland, but the Ukrainian side considers it a crime of ethnic cleansing.

Demands for Exhumations in Ukraine

DEMANDS FOR EXHUMATIONS IN UKRAINE

Successive Polish governments have, with limited success, demanded access to the sites in western Ukraine that were once part of Poland where UPA massacres took place. 

However, last year Poland began exhuming the remains of Poles killed in the former Polish village of Puzhnyky and, last week, Kyiv gave permission for more exhumations in Volhynia's Liuboml district.

Nationalist President Nawrocki

NATIONALIST PRESIDENT NAWROCKI      

Nawrocki, a conservative nationalist historian inspired by U.S. President Donald Trump, has repeatedly accused Kyiv of stalling on requests for exhumations, and urged it to denounce the Volhynia massacre as genocide.

Nawrocki has tapped into weariness with the large number of Ukrainians in Poland and, during his campaign, vowed not to ratify any Ukrainian accession to NATO to avoid provoking Russia, departing from previous Polish policy and angering Kyiv.

Critics have accused Nawrocki of promoting an approach to history teaching that whitewashes difficult parts of Poland's past. 

(Reporting by Marek Strzelecki; additional reporting by Anna Wlodarczak-Semczuk; Editing by Kevin Liffey)

Key Takeaways

  • Zelenskiy’s decision to name a Ukrainian special forces unit after the UPA—viewed by Poles as responsible for the World War II Volhynia massacres—sparked fury in Poland, where the UPA is seen as genocidal. (euronews.com)
  • President Nawrocki plans to propose at the June 8 meeting of the Order of the White Eagle chapter the revocation of Zelenskiy’s 2023 award; he argues the naming fuels Russian disinformation. (pap.pl)
  • Polish Prime Minister Donald Tusk called for dialogue to preserve solidarity, warning that historical disputes benefit Russia, even as exhumations of massacre victims resume in Ukraine. (aa.com.tr)

References

Frequently Asked Questions

Why is Poland considering stripping Zelenskiy of the Order of the White Eagle?
Poland is considering this due to Ukraine naming an army unit after the Ukrainian Insurgent Army, linked to massacres of Poles in World War Two.
What is the controversy around the Ukrainian Insurgent Army (UPA)?
The UPA fought for Ukrainian independence but was involved in the Volhynia massacres, with Poland considering these events a genocide against ethnic Poles.
How do Poland and Ukraine interpret the Volhynia massacres differently?
Poland sees the massacres as genocide, while Ukraine calls it a complex conflict with casualties on both sides, rejecting the genocide label.
What are Poland’s demands regarding historical sites in Ukraine?
Polish governments have sought access to sites of UPA massacres in western Ukraine to conduct exhumations and recover remains of Poles killed.
Who is Karol Nawrocki, and what is his stance on relations with Ukraine?
Karol Nawrocki is a nationalist Polish president pressing Ukraine to admit to genocide and pledging tougher policies on Ukrainian NATO accession.

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