Bolshevization Was the process starting in the mid-1920s by which the pluralistic Communist International (Comintern) and its constituent communist parties were increasingly subject to control by the Kremlin in Moscow. All the national communist parties were under the direct control of the Kremlin, and made to follow Leninist rhetoric. The leader of the Soviet Communist Party, Joseph Stalin was the final authority and the Comintern became a tool of his foreign policy. That policy downplayed revolution and made support for the Soviet Union the highest priority. Stalin's agent in running the Comintern was Grigory Zinoviev. [1] During the Fifth Congress of the Communist International in 1924, Bolshevization became the general principle. The Sixth Congress in 1928 took an ultra-left turn as Stalin decided that capitalism was reaching its final stages. There was less support for bourgeois nationalist movements in colonial regions, especially after the collapse of the Comintern in China.[2] In the Italian Communist Party (PCI), Antonio Gramsci took the lead in promoting Bolshevization [3]