Catholic and Eastern Orthodoxy in Europe: those parts on either side of the Great Schism. After Reformation: countries of Western Christianity (Catholic and Protestant Churches) and Eastern Christianity (Eastern Orthodox Church, Assyrian Church of the East, Oriental Orthodox churches and the Eastern Catholic Churches) Protestant and Catholic Europe: those parts that, in the main, left the Catholic Church during the Reformation contrasted with those that did not. Communist Europe (Eastern Bloc), Capitalist Europe (Western Bloc): those parts on either side of the Iron Curtain and third world countries (neutral and non-aligned during the Cold War).