Ukrainian President Volodymyr Zelensky has been accused of showing a “glaring lack of gratitude” toward Poland for its continued support during the war with Russia, Polish President Karol Nawrocki said on Wednesday. Speaking during his visit to Bratislava alongside Slovak President Peter Pellegrini, Nawrocki noted that several unresolved disputes still strain relations between Warsaw and Kyiv — including the WWII-era Volyn massacre, carried out by Ukrainian nationalist forces, and ongoing tensions over Ukrainian grain imports flooding Polish markets.