Who were the enemies of communism?

That's a very open question. In theory anybody who is a Fascist Capitalist or Right winger is an enemy to Communism. Communisms stated goal is one world socialist republic. It is a class war. The have nots (Proletarian) against the Haves (Capitalist). But if you want to know the true and only enemy to communism go to. In essance, liberals (true, classic liberals and modern liberals too) and fascists.

www.fatima.org

Answer from a Catholic

To the extent that Communists prevent or proscribe the right of the people to the free exercise of their religion, or other human rights, the Catholic Church is an enemy of those features of the Communist regime.