Lenin: Imperialism is forcing the masses into this struggle by sharpening class antagonisms to an immense degree, by worsening the conditions of the masses both economically-trusts and high cost of living, and politically-growth of militarism, frequent wars, increase of reaction, strengthening and extension of national oppression and colonial plunder. Victorious socialism must achieve complete democracy and, consequently, not only bring about the complete equality of nations, but also give effect to the right of oppressed nations to self-determination, i.e., the right to free political secession. https://wordsmith.social/protestation/quotes#quote8056