The Comintern was to play a major role in building communist parties around the world in both advanced countries as well as colonized states. Lenin’s uncompromising support for the right of nations to self-determination, up to and including secession, had a tremendous impact on the oppressed countries. He is credited with adding to Karl Marx and Friedrich Engels’ slogan, “Workers and oppressed of the world unite!”
His ground-breaking pamphlet, “Imperialism: The Highest Stage of Capitalism,” published in 1918, showed the capitalist system morphing into finance capital, with its tentacles extending throughout the world. He explained how this would become the basis for the union of national liberation and class struggle.
“Capitalism has grown into a world system of colonial oppression and of the financial strangulation of the overwhelming majority of the population of the world by a handful of ‘advanced’ countries. And this ‘booty’ is shared between two or three powerful world plunderers armed to the teeth.”
Soviets were formed in Cuba in this period and communist parties arose in many oppressed countries including South Africa, India, Indochina, Indonesia, Sudan, Iraq, Vietnam and elsewhere.