“Formerly, the national question was regarded from a reformist point of view, as an independent question having no connection with the general question of the power of capital, of the overthrow of imperialism, of the proletarian revolution. It was tacitly assumed that the victory of the proletariat in Europe was possible without a direct, alliance with the liberation movement in the colonies, that the national-colonial question could be solved on the quiet, “of its own accord,” off the highway of the proletarian revolution, without a revolutionary struggle against imperialism. Now we can say that anti-revolutionary point of view has been exposed. Leninism has proved, and the imperialist war and the revolution in Russia has confirmed, that the national question can be solved only in connection with and on the basis of the proletarian revolution, and that the road to victory of the revolution in the West lies through the revolutionary alliance with the liberation movement of the colonies and dependent countries against imperialism. The national question is a part of the general question of the proletarian revolution, a part of the question of the dictator of the proletariat.
The question is as follows: Are the revolutionary potentialities latent in the revolutionary liberation movement of the oppressed countries already exhausted, or not; and if not, is there any hope, any basis, for utilising these potentialities for the proletarian revolution, for transforming the dependent and colonial countries from a reserve of the imperialist bourgeoisie into a reserve of the revolutionary proletariat, into an ally of the latter?
Leninism replies to this question in the affirmative, i.e., it recognises the existence of revolutionary capacities in the national liberation movement of the oppressed countries, and the possibility of using these for overthrowing the common enemy, for overthrowing imperialism. The mechanics of the development of imperialism, the imperialist war and the revolution in Russia wholly confirm the conclusions of Leninism on this score.
Hence the necessity for the proletariat of the “dominant” nations to support-resolutely and actively to support-the national liberation movement of the oppressed and dependent peoples.
This does not mean, of course, that the proletariat must support every national movement, everywhere and always, in every individual concrete case. It means that support must be given to such national movements as tend to weaken, to overthrow imperialism, and not to strengthen and preserve it. Cases occur when the national movements in certain oppressed countries came into conflict with the interests of the development of the proletarian movement. In such cases support is, of course, entirely out of the question. The question of the rights of nations is not an isolated, self-sufficient question; it is a part of the general problem of the proletarian revolution, subordinate to the whole, and must be considered from the point of view of the whole.”
– J.V. Stalin, “The Foundations of Leninism”