Polish Prime Minister Donald Tusk warns that a worsening political dispute with Ukraine risks becoming a “strategic mistake” for both countries. The row centers on Ukraine’s commemoration of controversial World War II fighters, whom Poland has accused of committing genocide. According to reporting from multiple outlets, Tusk is attempting to cool tensions after actions taken by Poland’s President Karol Nawrocki escalate the dispute by stripping Ukrainian President Volodymyr Zelensky of Poland’s top decoration. In response to these developments, Ukraine and Poland exchange accusations tied to how the fighters are remembered and whether the commemoration is appropriate. Bloomberg and the Japan Times both describe Tusk’s warning as tensions continue to escalate, while the Kyiv Post adds that Nawrocki’s decision to remove Zelensky’s decoration is a key trigger for the wider diplomatic and public clash. Overall, the sources agree that the disagreement over historical commemoration is driving a direct political confrontation, and that Tusk’s intervention focuses on preventing further damage to relations.