Was the catholic church involved in world war 2?

Yes, but in history class they tell you no because they don't want to hurt its ''grand'' Reputation.

Pope Pious X had affiliations with Hitler. Of course the Catholic Church has murdered Jewish people throughout history. why not kill them in World War 2?

investigate in depth and you will discover the perversion of the Catholic church. They do not die for their God, they die for the Church itself.