Anti-Katyn
Anti-Katyn (Polish: Anty-Katyń, Russian: Анти-Катынь) is a denialism campaign intended to reduce and obscure the significance of the Katyn massacre of 1940 — where approximately 22,000 Polish military and police officers, border guards, and intelligentsia prisoners of war were murdered by the Soviet NKVD on the orders of Joseph Stalin — by referencing the deaths from disease of thousands of Imperial Russian and Red Army soldiers at Polish internment camps during the Interwar period. "Anti-Katyn" first emerged around 1990.