Will not perhaps the temporal power of Islam return and with it the menace of an armed Mohammedan world, which will shake off the domination of Europeans - still nominally Christian - and reappear as the prime enemy of our civilization? The future always comes as a surprise, but political wisdom consists in attempting at least some partial judgment of what that surprise may be. And for my part I cannot but believe that a main unexpected thing of the future is the return of Islam.
Hilaire Belloc (2017). “The Great Heresies”, p.95, Ignatius Press