"Some of the similarities and parallels include: Frequent recognition by Hitler and various Nazi leaders (and also Mussolini) that their only revolutionary and ideological counterparts were to be found in the Soviet Union . . . [and the] espousal of the have-not, proletarian-nation theory, which Lenin adopted only after it had been introduce in Italy."
January 1, 1970
https://en.wikiquote.org/wiki/Proletarian_nation