Rosa Luxemburg: Imperialism, the last phase and highest development of the political rule of capitalism, is the deadly enemy of the workers of all countries ... The struggle against imperialism is at the same time the struggle of the proletariat for political power, the decisive conflict between Capitalism and Socialism. The final aim of Socialism can be achieved only if the international proletariat fights uncompromisingly against imperialism as a whole, and takes the slogan “war against war” as a practical guide to action, summoning up all its strength and all its capacity for self-sacrifice. https://wordsmith.social/protestation/quotes#quote3165