V. I. Lenin
Collected Works
London: Lawrence & Wishart, 1960, Vol. 20, p. 412

"The Right of Nations to Self-Determination"

The bourgeois nationalism of any oppressed nation has a general democratic
content that is directed against oppression, and it is this content that
we unconditionally support.

[MC5 adds: : Thanks to former SDS leader Noel Ignatin for pointing
out this Lenin quote in the defunct Urgent Tasks magazine. People who
say Stalin and Mao invented the policy of allying with the national
bourgeoisie obviously did not read this Lenin work or even more forceful
line statements from the COMINTERN.]