Warsaw, 30 May 2026

Poland's government on Friday condemned Ukraine's decision to name a military unit after the Ukrainian Insurgent Army (UPA), a nationalist formation responsible for the massacre of up to 100,000 ethnic Poles during World War II.

A Wartime History of Bloodshed

The dispute centers on the UPA, which served as the military arm of the Organization of Ukrainian Nationalists (OUN) in the 1940s. Between 1943 and 1945, UPA members carried out mass killings of Polish civilians in the Volhynia region, a historical trauma that continues to strain relations between the two neighbors.

Polish Prime Minister Donald Tusk addressed the issue directly on Friday. "This decision violates our historical sensitivity," Tusk said, according to a report broadcast by Deutschlandfunk.