Marxism–Leninism (Russian: марксизм-ленинизм, romanized: marksizm-leninizm) is a communist ideology that became the largest faction of the communist movement in the world in the years following the October Revolution. It was the predominant ideology of most communist governments throughout the 20th century. It was developed in the Soviet Union by Joseph Stalin and drew on elements of Bolshevism, Leninism, and Marxism. It was the state ideology of the Soviet Union, Soviet satellite states in the Eastern Bloc, and various countries in the Non-Aligned Movement and Third World during the Cold War, as well as the Communist International after Bolshevization. Today, Marxism–Leninism is the official ideology of the ruling parties of China, Cuba, Laos, and Vietnam, as well as many other communist parties. The state ideology of North Korea is derived from Marxism–Leninism, although its evolution is disputed.
Marxism–Leninism was developed from Bolshevism by Joseph Stalin in the 1920s based on his understanding and synthesis of classical Marxism and Leninism. Marxism–Leninism holds that a two-stage communist revolution is needed to replace capitalism. A vanguard party, organized through democratic centralism, would seize power on behalf of the proletariat and establish a one-party communist state. The state would control the means of production, suppress opposition, counter-revolution, and the bourgeoisie, and promote Soviet collectivism, to pave the way for an eventual communist society that would be classless and stateless.