Persecution by the Soviet Union

Soviet campaign of political repression, imprisonment, and execution (August 1936 - March 1938)

1950s antisemitic campaign by Stalin in the Soviet Union

De-Cossackization (; ) was the Bolshevik policy of systematic repression against the Cossacks in territories of the former Russian Empire between 1919 and 1933, especially the Don and Kuban Cossacks in Russia, aimed at the elimination of the Cossacks as a distinct collectivity by exterminating the Cossack élite, coercing all other Cossacks into compliance, and eliminating Cossack distinctness. Several scholars have categorised this as a form of genocide, whilst other historians have highly disputed this classification due to the contentious figures involved, which range from "a few thousand to

1972–1989 Catholic samizdat periodical in the Lithuanian SSR, Soviet Union