Back when Europe had “MEN” with balls to fight against the fanatics of Islam!
Awesome preparation + divine intervention is a great formula for victory against all odds.
The Turks were not slouches as sailors either. In those days, Europeans called any Islamic enemy "Turks", although technically many of them were actually from the Maghreb States. One man on my family tree was captured and enslaved for a time by such Turks. For him, at least (and a handful of fellow captives), the story had a happy ending as you can see at the link.
And the ‘yugest’ reason....when Europe had “MEN” who believed in the triune God!
One read of Judges will show you that man turns from God, sins, all heck breaks loose...than they cry out to God to save them from themselves....He does, they repent and have a few years of peace.....and start the cycle all over again. Depending on the judge who lead, was the time of peace!!!