Marxism–Leninism is a communist ideology and the main communist movement throughout the 20th century. Marxism–Leninism was the formal name of the official state ideology adopted by the Soviet Union, its satellite states in the Eastern Bloc and various self-declared scientific socialist regimes in the Non-Aligned Movement and Third World during the Cold War as well as the Communist International after Bolshevisation. Today, Marxism–Leninism is the ideology of several communist parties and remains the official ideology of the ruling parties of China, Cuba, Laos and Vietnam as unitary one-party socialist republics and of Nepal in a people's multiparty democracy. Generally, Marxist–Leninists support proletarian internationalism, socialist democracy and oppose anarchism, fascism, imperialism an