Anti-Catholicism in the Soviet Union

Anti-Catholicism in the Soviet Union, including the Soviet Anti-Catholic Campaigns, refer to those concerted efforts taken by the Soviet Union to defame, undermine, or otherwise decrease or limit the role of the Catholic Church in Europe. == History == Prior to the Russian Revolution of 1917, Russia had an Anti-Catholic Tradition, dating back to Ivan the Terrible in the 16th Century and before.