the second version of communism as a social model is based upon the regimes that communism parties established when they gained power in the twentieth century for example in the USSR and Eastern Europe and in China , Cuba , Vietnam and elsewhere communism in this sense came to mean actually existing socialism sometimes seen as orthodox communism
orthodox communism amounted to a form of state socialism in which political control was vested in the hands of a monopolistic and hierarchical communist party and the economy was organised on the basis of state colectivisation and central planning