In 1937, Pope Pius XI realized the serious threat that communism posed to the common good and called upon St. Joseph to protect the Church from the many errors of communism. He wrote: We place the vast campaign of the Church against world communism under the standard of St. Joseph, her mighty protector.2 As a result of Pope Pius XI’s words, Catholics fervently began to pray to St. Joseph, specifically under the title “Terror of Demons,” to combat the atheistic ideas of communism.