The praefect and patrician John, a general of experience and renown, embarked at Constantinople the forces of the Eastern empire; they were joined by the ships and soldiers of Sicily, and a powerful reenforcement of Goths was obtained from the fears and religion of the Spanish monarch.

The weight of the confederate navy broke the chain that guarded the entrance of the harbor; the Arabs retired to Cairoan, or Tripoli; the Christians landed; the citizens hailed the ensign of the cross, and the winter was idly wasted in the dream of victory or deliverance.

But Africa was irrecoverably lost; the zeal and resentment of the commander of the faithful prepared in the ensuing spring a more numerous armament by sea and land; and the patrician in his turn was compelled to evacuate the post and fortifications of Carthage.

A second battle was fought in the neighborhood of Utica: the Greeks and Goths were again defeated; and their timely embarkation saved them from the sword of Hassan, who had invested the slight and insufficient rampart of their camp.

Whatever yet remained of Carthage was delivered to the flames, and the colony of Dido and Caesar lay desolate above two hundred years, till a part, perhaps a twentieth, of the old circumference was repeopled by the first of the Fatimite caliphs.