In its relations with the Communist parties, the new Brezhnev leadership adhered essentially to the line traced by the Moscow world conference of 1957. It operated on an assumption which goes back to the founding of the Comintern, that a common interest in the struggle against imperialism exists within the revolutionary workers’ movement. Both ruling and nonruling parties unite in the spirit of proletarian internationalism against imperialism as the vanguard of the working class, with common action, aid, and solidarity. Proletarian internationalism is an indivisible concept drawn from common values rooted in Marxism-Leninism, which cannot be split into national or regional departments, as Eurocommunism implies, for example. Each Communist party is of course independent, has equal rights, and is called upon to defend the national interests of its country. At the same time there must be a guarantee that the interests of the national parties will be subordinated to the interests of the world Communist movement in the pursuit of the common goals.