Katyń massacre 1940 Катинська різанина 1940 (ua)

one of the Kremlin narratives, “anti-Katy?” propaganda campaign, that paints this war crime (executions of about 22,000 Polish military officers and intelligentsia) as a “just historical revenge” for the spurious mass killings of Soviet POWs in Poland during the Polish-Soviet war of 1919–1921. According to Polish and Russian historians, the main cause of high mortality among Soviet prisoners of war were infectious diseases that took the lives of 16,000–20,000 (while Russian propaganda most often cites the inflated number of 100,000).