Despite it being well funded and equipped, and one of the few standing navies of its time, a combination of technological and geographical factors prohibited the Fatimid navy from being able to secure supremacy at sea, or interdict the Crusaders' maritime lines of communication to Western Europe. The Fatimids retained a sizeable navy almost up to the end of the regime, but most of the fleet, and its great arsenal, went up in flames in the destruction of Fustat in 1169.