As the Romans were pressed by a victorious enemy, they gradually, and unskilfully, retired towards the Chersonesus of Thrace; and that narrow peninsula, the last extremity of the land, was marked by their third and irreparable defeat. By the destruction of this army Attila acquired the indisputable possession of the field. From the Hellespont to Thermopylæ and the suburbs of Constantinople, he ravaged, without resistance and without mercy, the provinces of Thrace and Macedonia. Heraclea and Hadrianopolis might perhaps escape this dreadful irruption of the Huns; but the words the most expressive of total extirpation and erasure are applied to the calamities which they inflicted on seventy cities of the Eastern Empire. Theodosius, his court, and the unwarlike people, were protected by the walls of Constantinople; but those walls had been shaken by a recent earthquake, and the fall of fifty-eight towers had opened a large and tremendous breach. The damage indeed was speedily repaired; but this accident was aggravated by a superstitious fear that heaven itself had delivered the imperial city to the shepherds of Scythia, who were strangers to the laws, the language, and the religion of the Romans. In all their invasions of the civilised empires of the south, the Scythian shepherds have been uniformly actuated by a savage and destructive spirit. The laws of war, that restrain the exercise of national rapine and murder, are founded on two principles of substantial interest--the knowledge of the permanent benefits which may be obtained by a moderate use of conquest, and a just apprehension, lest the desolation which we inflict on the enemy’s country may be retaliated on our own. But these considerations of hope and fear are almost unknown in the pastoral state of nations. The Huns of Attila may, without injustice, be compared to the Moguls and Tatars, before their primitive manners were changed by religion and luxury; and the evidence of oriental history may reflect some light on the short and imperfect annals of Rome. After the Mongols had subdued the northern provinces of China, it was seriously proposed, not in the hour of victory and passion but in calm, deliberate council, to exterminate all the inhabitants of that populous country, that the vacant land might be converted to the pasture of cattle. The firmness of a Chinese mandarin, who insinuated some principles of rational policy into the mind of Jenghiz, diverted him from the execution of this horrid design. But in the cities of Asia, which yielded to the Mongols, the inhuman abuse of the rights of war was exercised with a regular form of discipline, which may, with equal reason though not with equal authority, be imputed to the victorious Huns.