Aleppo was one of the few fortresses that made a respectable defence against the Moslems at the time of their first irruption. None of the great frontier towns to the eastward,--Edessa, Amida and Dara--so much as stood a real siege. Such was the bitterness of party strife, both civil and religious, within the Byzantine Empire at that period, that the Arab invaders were welcomed rather than resisted in these lands. The citadel of Aleppo, however, was defended by a certain Youkinna, till even the redoubtable Caled, "the Sword of Allah," began to despair of success. Only the direct command of the Khalif Omar had induced him to persevere with the leaguer when a valiant slave named Dames volunteered to attempt a _coup de main_. Caled approved his design; and to favour its execution withdrew his forces to a distance. Thus Youkinna, rather too readily, assumed that the siege was raised. The sentinels relaxed their vigilance, and the garrison had taken to carousing, when Dames with thirty companions crept up in the darkness to the walls. With the stalwart slave as their base they built up a human ladder, each man in succession clambering on to the shoulders of those below. The man on the seventh tier gripped the battlements, and scrambled over them, and then, letting down his turban, hauled up his associates one by one. Cutting down the few guards they encountered the Moslems then made for the gateway, and succeeded in gaining possession of it ere the garrison was fully aroused. Here they maintained themselves till daybreak when Caled arrived to relieve them, and Youkinna thereupon surrendered, seeing that further resistance was vain. Aleppo accepted its fate and has since remained Mohammedan. The Byzantines did indeed temporarily recover it little more than three hundred years later, when the waning power of the Abbasside Khalifs enabled Nicephorus and Zimisces to push their armies almost to Baghdad. But this was a transitory conquest; a plundering raid rather than an occupation. The Greeks and Romans had always been alien intruders, and now their Asiatic provinces had reverted to Asia for good.