In May 1935, French Foreign Minister Pierre Laval allegedly asked Stalin to improve the situation of Catholics in the USSR so as not to provoke a quarrel with the Pope. At that, Stalin, with his brutal sense of humour, asked, The Pope? How many divisions does he have?
Fast forward to 2018- Stalin is moldering in a Christless grave, while the Pope is still around (nevermind the marxist currently in Peter's seat, think of John Paul II and Benedict XVI).