Poland's Prime Minister Donald Tusk announced the decision to exhume victims of the Volhynia Massacre, a contentious historical issue between Poland and Ukraine. The UPA's actions in 1943 led to the deaths of around 100,000 Polish civilians, and while Poland recognizes it as genocide, Ukraine disputes this. Polish officials emphasize the need for resolution before Ukraine can join the EU or NATO. Recent tensions have been exacerbated by a ban on exhumations in Ukraine, but leaders from both countries hope that Tusk's announcement will improve relations.