The foundation of the African Liberation Support Committee in 1971 was oriented towards solidarity with the liberation movements of Portuguese Southern Africa. The ALSC brought together such a broad range of black activists, it became an arena for debate over the creation of a black radical agenda. While most ALSC organizers were actively anti-imperialists, the number of black Marxists in leadership positions turned out to be a point of contention. This is I think a significant split in the movement that is still with us to this day.