Page:Decline and Fall of the Roman Empire vol 4 (1897).djvu/403

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OF THE ROMAN EMPIRE
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ruin. Their repentance was accepted at Constantinople by the prudence, rather than the clemency, of Justinian; and he commanded Dagisteus, with seven thousand Romans, and one thousand of the Zani, to expel the Persians from the coast of the Euxine.

Siege of Petra. A.D. 549-551 The siege of Petra, which the Roman general, with the aid of the Lazi, immediately undertook, is one of the most remarkable actions of the age. The city was seated on a craggy rock, which hung over the sea, and communicated by a steep and narrow path with the land. Since the approach was difficult, the attack might be deemed impossible; the Persian conqueror had strengthened the fortifications of Justinian; and the places least inaccessible were covered by additional bulwarks. In this important fortress, the vigilance of Chosroes had deposited a magazine of offensive and defensive arms, sufficient for five times the number, not only of the garrison, but of the besiegers themselves. The stock of flour and salt provisions was adequate to the consumption of five years; the want of wine was supplied by vinegar, and [of] grain from whence a strong liquor was extracted; and a triple aqueduct eluded the diligence, and even the suspicions, of the enemy. But the firmest defence of Petra was placed in the valour of fifteen hundred Persians, who resisted the assaults of the Romans, whilst, in a softer vein of earth, a mine was secretly perforated. The wall, supported by slender and temporary props, hung tottering in the air; but Dagisteus delayed the attack till he had secured a specific recompense; and the town was relieved before the return of his messenger from Constantinople. The Persian garrison was reduced to four hundred men, of whom no more than fifty were exempt from sickness or wounds; yet such had been their inflexible perseverance, that they concealed their losses from the enemy, by enduring, without a murmur, the sight and putrefying stench of the dead bodies of their eleven hundred companions. After their deliverance, the breaches were hastily stopped with sand-bags; the mine was replenished with earth; a new wall was erected on a frame of substantial timber; and a fresh garrison of three thousand men was stationed at Petra to sustain the labours of a second siege. The operations, both of the attack and defence, were conducted with skilful obstinacy; and each party derived useful lessons from the experience of their past faults. A battering ram was invented, of light construction and powerful effect; it was transported and worked by the hand§ of forty soldiers; and, as the stones were loosened