President Duda: Polish-Ukrainian relations must be founded on historical truth

President Andrzej Duda attended the ceremony marking the anniversary of the Volhynia Massacre in 1943. He travelled to Ukraine on Sunday to pay respect to murdered Poles. Ukraine's president, Petro Poroshenko was also there, but he dedicated his visit to the victims of the Polish-Ukrainian conflict in 1943 to 1944. The two presidents were not expected to meet each other.