in the village of Lipniki,
Wołyń (Volhynia), 1943 On 15 July 2009, the
Sejm of Poland, in its resolution (adopted by unanimous acclamation without voting procedure) stated, that the
Organization of Ukrainian Nationalists (OUN) and
Ukrainian Insurgent Army (UPA) carried out "an anti-Polish actionmass killings that had the character of ethnic cleansing and had signs of genocide". In addition, the Sejm "honors the memory of the
Home Army soldiers, Self-Defense of the Eastern Kres and Peasant battalions who rose to the dramatic struggle to protect the Polish civilian population and also remembers with pain the victims among the Ukrainian civilian population". On 15 July 2013, the Sejm adopted a special resolution dedicated to the 70th anniversary of the "Volyn Crime" (this name is used in the resolution), which notes that the crimes committed by the OUN and UPA had an "organized and massive scale", which gave them "the character of ethnic cleansing with signs of genocide." On 7 July 2016, the
Senate of Poland adopted a resolution "on the issue of perpetuating the memory of the victims of the genocide committed by Ukrainian nationalists against citizens of the
Second Polish Republic in 1939-1945." On 22 July 2016, the Sejm established this memorial day in memory of the victims of the Volyn massacre of the Polish population, organized by the fighters of the OUN, UPA,
SS Galicia division and other Ukrainian formations during World War II. Deputies from the Polish Peasant Party proposed another name"The Day of Remembrance of the Polish victims of the genocide committed by the OUN-UPA on the Eastern Borders of the Second Polish Republic". On 4 June 2025, the Sejm adopted a bill establishing July 11 as the Day of Remembrance of Poles, victims of genocide committed by
OUN-UPA on the
Eastern Borderlands of the
Second Republic of Poland. On 11 July 2025, marking the 82nd anniversary of the 1943
Volhynian Bloody Sunday, Poland commemorated the first-ever National Day of Remembrance for Poles killed by Ukrainian nationalists. == Reaction in Ukraine ==