Internationalism is the ethical belief or scientific approach in which peoples of different nations are held to be or assumed to be equal.
Internationalism is opposed to racism and national chauvinism.
We oppose nationalism of oppressed nations directed at other oppressed nations, because the economic content of such nationalism is intra-proletarian conflict. We seek a united front of oppressed nations led by the international proletariat against imperialism. That is what internationalism means, and that is the duty of the internationalist, of the revolutionary worker, of the genuine Socialist.