War communism was the first system adopted by the Bolsheviks during the Russian Civil War as result of the many challenges. Despite "communism" in the name, it had nothing to do with communism, with strict discipline for workers, strike actions forbidden, obligatory labor duty, and military-style control, and has been described as simple authoritarian control by the Bolsheviks to maintain power and control in the Soviet regions, rather than any coherent political ideology. The Soviet Union was established in 1922. Before the broad ban, there were several factions, more prominently among them the Left Opposition, the Right Opposition, and the Workers' Opposition, which debated on the path of development to follow. The Left and Workers' oppositions were more critical of the state-capitalist development and the Workers' in particular was critical of bureaucratization and development from above, while the Right Opposition was more supporting of state-capitalist development and advocated the New Economic Policy. Following Lenin's democratic centralism, the Leninist parties were organized on a hierarchical basis, with active cells of members as the broad base. They were made up only of elite cadres approved by higher members of the party as being reliable and completely subject to party discipline. Trotskyism overtook the left communists as the main dissident communist current, while more libertarian communisms, dating back to the libertarian Marxist current of council communism, remained important dissident communisms outside the Soviet Union. In the Moscow Trials, many old Bolsheviks who had played prominent roles during the Russian Revolution or in Lenin's Soviet government afterwards, including Lev Kamenev, Grigory Zinoviev, Alexei Rykov, and Nikolai Bukharin, were accused, pleaded guilty of conspiracy against the Soviet Union, and were executed.