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 which he deemed sufficient for the recovery of his capital; and, moreover, he attacked the city insidiously by means of secret emissaries whom he employed to seduce the allegiance of the Arian barbarians, who were numerous in the Roman army. His camp was situated at Bulla on the Numidian frontier, about one hundred miles to the west of Carthage. Here he awaited his brother Tzazo, the leader of the Sardinian expedition, whom he had summoned to take part in the war against the invaders. His approach was signalled, and, as soon as a landing was effected, the impulsive barbarians threw themselves into each other's arms and bewailed with tears and lamentations the sudden misfortunes which had overtaken their race.

The siege of Carthage was now begun, and Gelimer's first hostile act was to cut off the main water supply by making a breach in the aqueduct. No military assault was attempted, nor did the Vandals raid the country, as they looked on everything as their own property. A passive beleaguerment, by isolating the inhabitants from the outside world, seemed to them to be sufficient to bring about the submission of the capital. Belisarius on his side at first maintained an equal quietude, deferring active measures until the walls had been fully consolidated. He was also distrustful of the Huns under his command, whose murmurs against their protracted absence from home augured ill for their loyal bearing in the event of a battle.

After the lapse of a few weeks the fortifications were rendered secure, and then the Byzantine general marched out with all his forces to seek the enemy. Gelimer's encampment was soon discovered to be at Tricamerum, seven-*