China
China's constitution states that The People's Republic of China "is a socialist state under the people's democratic dictatorship led by the working class and based on the alliance of workers and peasants," and that the state organs "apply the principle of democratic centralism." The PRC is one of the world's only socialist states openly endorsing communism (see Ideology of the Communist Party of China). The Chinese government has been variously described as communist and socialist, but also as authoritarian and corporatist, with heavy restrictions in many areas, most notably against free access to the Internet, freedom of the press, freedom of assembly, the right to have children, free formation of social organizations and freedom of religion. Its current political, ideological and economic system has been termed by its leaders as the "people's democratic dictatorship", "socialism with Chinese characteristics" (which is Marxism adapted to Chinese circumstances) and the "socialist market economy" respectively.
Sino-Soviet split
The Sino-Soviet split allowed only written communications between the quarreling socialist countries; thus, the PRC and the USSR supported their geopolitical actions with formal statements of ideology concerning the true road to world communism, that is the general line of the party. In June 1963, the PRC published "The Chinese Communist Party's Proposal Concerning the General Line of the International Communist Movement", to which the USSR replied with the "Open Letter of the Communist Party of the Soviet Union". In 1964, as a theoretician of Communism, Chairman Mao said that, in light of their differences of interpretation of Orthodox Marxism, a counter-revolution in the USSR had re-established capitalism; consequently, the USSR and then the Warsaw Pact countries broke relations with the People's Republic of China .