Ukraine will not be able to join the European Union (EU) until the Volhynia massacre issue between Warsaw and Kyiv is resolved, Polish defense minister Wladyslaw Kosiniak-Kamysz stated on Polsat television. He noted that Poland supports Ukraine as much as it can because it is a security matter for all of Europe. However, "not everything is perfect" in Warsaw-Kyiv relations as unresolved historical matters will become part of real politics after the end of the war, Kosiniak-Kamysz noted. The events unfolding in western Ukraine in 1942 and 1943 are called the "Volhynia massacres." At that time, by order of the local leadership of the organization of Ukrainian nationalists, ethnic Poles who lived in today’s Volhynia region before the outbreak of World War II were killed. The Polish side estimates the number of people killed at 50 to 100 thousand.