Bolshevik Party in the context of "July Days"

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. This notion was also embraced by the Bolshevik Party. After the formation of the Soviet Union, Marxist proponents of internationalism suggested that country could be used as a "homeland of communism" from which revolution could be spread around the globe. Though world revolution continued to figure prominently in Soviet rhetoric for decades, it no longer superseded domestic concerns on the government's agenda, especially after the ascension of Joseph Stalin, who was a proponent of socialism in one country. Despite this, the Soviet Union continued to foster international ties with communist and left-wing parties and governments around the world. It played a fundamental role in the establishment of several socialist states in Eastern Europe after World War II and backed the creation of others in Asia, Latin America, and Africa. The Soviets also funded dozens of insurgencies being waged against colonialist governments by leftist guerrilla movements worldwide. A few other states later exercised their own commitments to the cause of world revolution. Cuba frequently dispatched internationalist military missions abroad to defend communist interests in Africa and the Caribbean.

Under the leadership of Russian communist Vladimir Lenin, the Bolshevik Party seized power in the Russian Republic during a coup known as the October Revolution. Overthrowing the pre-existing Provisional Government, the Bolsheviks established a new administration, the first Council of People's Commissars (see article "Lenin's First and Second Government"), with Lenin appointed as its governing chairman. Ruling by decree, Lenin’s Sovnarkom introduced widespread reforms, such as confiscating land for redistribution among the peasantry, permitting non-Russian nations to declare themselves independent, improving labour rights, and increasing access to education.

The Lenin party continued with the previously scheduled November 1917 election, but when it produced a Constituent Assembly dominated by the rival Socialist Revolutionary Party the Bolsheviks lambasted it as counter-revolutionary and shut it down. The Bolshevik government banned a number of centrist and right-wing parties, and restricted the activities of rival socialist groups, but entered into a governmental coalition with the Left Socialist Revolutionary Party. Lenin had inherited a country in the midst of the First World War, with war-weary Russian troops battling the Central Powers of Germany and Austria-Hungary on the Eastern Front. Deeming the ongoing conflict a threat to his own government, Lenin sought to withdraw Russia from the war, using his Decree on Peace to establish an armistice, after which negotiations took place resulting in the Treaty of Brest-Litovsk. This punitive treaty – highly unpopular within Russia – established a cessation of hostilities but granted considerable territorial concessions to Germany, who took control of large areas of the former Empire.