Vinnytsia massacre

The Vinnytsia massacre was a mass execution of (mostly ethnic Ukrainian) people in the Ukrainian town of Vinnytsia by the Soviet secret police NKVD during Joseph Stalin's Great Purge in 1937–1938. Mass graves in Vinnytsia were discovered during the German occupation of Ukraine in 1943. The investigation of this site coincided with the discovery of a similar mass murder site of Poles in Katyn. Because the Nazis wanted to use this evidence of Communist terror to discredit the Soviet Union, it became one of the better researched sites of mass murder among many in Ukraine.

• http://en.wikipedia.org/wiki/Vinnytsia massacre