Brother Louis Rocco made this prediction in the 19th century.

“Terrible wars will rage all over Europe. God has long been patient with the corruption of morals; half of mankind He will destroy. Russia will witness many outrages. Great cities and small towns alike will be destroyed in a bloody revolution that will cause the death of half the population. In Istanbul the Cross will replace the half-moon of Islam, and Jerusalem will be the seat of a King. The southern Slavs will form a great Catholic Empire and drive out of Europe the Turks, who will withdraw to North Africa and subsequently embrace the Catholic faith.”