Guevarism is a theory of communist revolution and a military strategy of guerrilla warfare associated with Marxist–Leninist revolutionary Ernesto "Che" Guevara, a leading figure of the Cuban Revolution who believed in the idea of Marxism–Leninism and embraced its principles. After the 1959 triumph of the Cuban Revolution led by a militant foco under Fidel Castro, his Argentine-born, cosmopolitan and Marxist colleague, Guevara parlayed his ideology and experiences into a model for emulation (and at times, direct military intervention) around the globe.
World revolution is the Marxist concept of overthrowing capitalism in all countries through the conscious revolutionary action of the organized working class. For theorists, these revolutions will not necessarily occur simultaneously, but where and when local conditions allow a revolutionary party to successfully replace bourgeois ownership and rule, and install a workers' state based on social ownership of the means of production.
Proletarian internationalism, sometimes referred to as international socialism, is the perception of all proletarian revolutions as being part of a single global class struggle rather than separate localized events. It is based on the theory that capitalism is a world-system and therefore the working classes of all nations must act in concert if they are to replace it with communism. Proletarian internationalism was strongly embraced by the first communist party, the Communist League, as exercised through its slogan "Proletarians of all countries, unite!", later popularized as "Workers of the world, unite!" in English literature.
Vanguardism, in the context of Leninist revolutionary struggle, relates to a strategy whereby the most class-conscious and politically "advanced" sections of the proletariat or working class, described as the revolutionary vanguard, form organizations to advance the objectives of communism. They take actions to draw larger sections of the working class toward revolutionary politics and to serve as manifestations of proletarian political power opposed to the bourgeoisie.
Socialism in one country was a Soviet state policy to strengthen socialism within the country rather than socialism globally. Given the defeats of the 1917–1923 European communist revolutions, Joseph Stalin encouraged the theory of the possibility of constructing socialism in the Soviet Union. The theory was eventually adopted as Soviet state policy. As a political theory, its exponents argue that it contradicts neither world revolution nor world communism.
Ernesto Che Guevara (ˈtʃe ɣeˈβaɾa; 14 June 1928 – 9 October 1967) was an Argentine Marxist revolutionary, physician, author, guerrilla leader, diplomat, and military theorist. A major figure of the Cuban Revolution, his stylized visage has become a ubiquitous countercultural symbol of rebellion and global insignia in popular culture. As a young medical student, Guevara traveled throughout South America and was radicalized by the poverty, hunger, and disease he witnessed.
Left communism, or the communist left, is a position held by the left wing of communism, which criticises the political ideas and practices espoused by Marxist–Leninists and social democrats. Left communists assert positions which they regard as more authentically Marxist than the views of Marxism–Leninism espoused by the Communist International after its Bolshevization by Joseph Stalin and during its second congress. In general, there are two currents of left communism, namely the Italian and Dutch–German left.
The political slogan "Workers of the world, unite!" is one of the rallying cries from The Communist Manifesto (1848) by Karl Marx and Friedrich Engels (Proletarier aller Länder, vereinigt Euch!, literally , but soon popularised in English as "Workers of the world, unite! You have nothing to lose but your chains!"). A variation of this phrase ("Workers of all lands, unite") is also inscribed on Marx's tombstone. The essence of the slogan is that members of the working classes throughout the world should cooperate to defeat capitalism and achieve victory in the class conflict.
Revolutionary socialism is a political philosophy, doctrine, and tradition within socialism that stresses the idea that a social revolution is necessary to bring about structural changes in society. More specifically, it is the view that revolution is a necessary precondition for transitioning from a capitalist to a socialist mode of production. Revolution is not necessarily defined as a violent insurrection; it is defined as a seizure of political power by mass movements of the working class so that the state is directly controlled or abolished by the working class as opposed to the capitalist class and its interests.
Reformism is a political doctrine advocating the reform of an existing system or institution instead of its abolition and replacement via revolution. Within the socialist movement, reformism is the view that gradual changes through existing institutions can eventually lead to fundamental changes in a society's political and economic systems. Reformism as a political tendency and hypothesis of social change grew out of opposition to revolutionary socialism, which contends that revolutionary upheaval is a necessary precondition for the structural changes necessary to transform a capitalist system to a qualitatively different socialist system.