After the October Revolution, there was a movement within the Soviet Union to unite all of the people of the world under communist rule known as world communism. Communism as interpreted by Vladimir Lenin and his successors in the Soviet government included the abolition of religion and to this effect the Soviet government launched a long-running unofficial campaign to eliminate religion from society.[1] Since some of these Slavic states tied their ethnic heritage to their ethnic churches, both the peoples and their churches were targeted by the Soviets.[2][3]
Across Eastern Europe following World War II, parts of the former Nazi Germany liberated by the Soviet Red Army and Yugoslav Partisans became one-party communist states and the project of coercive conversion to atheism continued.[4][5] The Soviet Union ended its war time truce against the Russian Orthodox Church, and extended its persecutions to the newly communist Eastern bloc. While the churches were generally not as severely treated as they had been in the Soviet Union, nearly all their schools and many of their churches were closed, and they lost their formally prominent roles in public life. Children were taught atheism, and clergy were imprisoned or killed by the thousands.[6]: 508 In the Eastern Bloc, Christian churches, along with Jewish synagogues and Islamic mosques were forcibly "converted into museums of atheism."[7][8]
According to some sources, the total number of Christian killed under the Soviet regime owing to their faith has been estimated to range around 12 to 20 million.[9][10][11]
As early as August 1920 Lenin wrote to E. M. Skliansky, President of the Revolutionary War Soviet: 'We are surrounded by the greens (we pack it to them), we will move only about 10–20 versty and we will choke by hand the bourgeoisie, the clergy and the landowners. There will be an award of 100,000 rubles for each one hanged.' He was speaking about the future actions in the countries neighboring Russia.
Churches, when not destroyed, might find themselves converted into museums of atheism.
Churches, synagogues, mosques and monasteries were shut down in the immediate wake of the Revolution. Many were converted to secular uses or Museums of Atheism (antichurches), whitewashed and their fittings removed.
Estimates of the total number all Christian martyrs in the former Soviet Union are about 12 million.
Note that over 20 million were martyred in Soviet prison camps and that well over half of the 70 million Christian martyrs were killed in the twentieth century alone.
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