"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 . . . Hitlerian National Socialism more nearly paralleled than has any other non-Communist system."