Communism as Karl Marx and Friedrich Engels envisioned it was meant to be very internationalist as proletarian internationalism was expected to place class conflict well ahead of nationalism as a priority for the working class. Nationalism was seen as a tool that the bourgeoisie used to divide and rule the proletariat (bourgeois nationalism). Whereas the influence of international communism was very strong from the late 19th century through the 1920s, the decades after that—beginning with socialism in one country and progressing into the Cold War and the Non-Aligned Movement—made national communism a larger political reality.