The Bolsheviks formed an international union of pro-Bolshevik socialist parties called ____________.
The correct option is A Comintern Soon after the October Revolution of 1917, communist parties were formed in many countries - like the Communist Party of Great Britain. The Bolsheviks had also formed an international union of pro-Bolshevik socialist parties called the Comintern in 1919. The Russian Revolution influenced the Conference of the Peoples of the East in 1920. Many non-Russians from outside the USSR participated in this multinational conference and the Comintern.