Socialism maybe the but the Roman Catholic church has a strong history of opposition to communism. I would suggest God's Bankers: A History of Money and Power

Socialism maybe the but the Roman Catholic church has a strong history of opposition to communism. I would suggest God's Bankers: A History of Money and Power at the Vatican as for a pop-culture introduction of how the Catholic church aligned itself with fascist states including Mussolini's PNF, the Nazis and the Ustaše. The Ustaše were particularly closely associated with the Catholic church.