The History of the Decline and Fall of the Roman Empire - Edward Gibbon [284]
[Footnote 61: Ipsos Persas ipsumque Regem ascitis Saccis, et Russis, et Gellis, petit frater Ormies. Panegyric. Vet. iii. 1. The Saccae were a nation of wandering Scythians, who encamped towards the sources of the Oxus and the Jaxartes. The Gelli where the inhabitants of Ghilan, along the Caspian Sea, and who so long, under the name of Dilemines, infested the Persian monarchy. See d'Herbelot, Bibliotheque]
[Footnote *: M St. Martin represents this differently. Le roi de Perse * * * profits d'un voyage que Tiridate avoit fait a Rome pour attaquer ce royaume. This reads like the evasion of the national historians to disguise the fact discreditable to their hero. See Mem. sur l'Armenie, i. 304. - M.]
[Footnote 62: Moses of Chorene takes no notice of this second revolution, which I have been obliged to collect from a passage of Ammianus Marcellinus, (l. xxiii. c. 5.) Lactantius speaks of the ambition of Narses: "Concitatus domesticis exemplis avi sui Saporis ad occupandum orientem magnis copiis inhiabat." De Mort. Persecut. c. 9.]
Neither prudence nor honor could permit the emperors to forsake the cause of the Armenian king, and it was resolved to exert the force of the empire in the Persian war. Diocletian, with the calm dignity which he constantly assumed, fixed his own station in the city of Antioch, from whence he prepared and directed the military operations. ^63 The conduct of the legions was intrusted to the intrepid valor of Galerius, who, for that important purpose, was removed from the banks of the Danube to those of the Euphrates. The armies soon encountered each other in the plains of Mesopotamia, and two battles were fought with various and doubtful success; but the third engagement was of a more decisive nature; and the Roman army received a total overthrow, which is attributed to the rashness of Galerius, who, with an inconsiderable body of troops, attacked the innumerable host of the Persians. ^64 But the consideration of the country that was the scene of action, may suggest another reason for his defeat. The same ground on which Galerius was vanquished, had been rendered memorable by the death of Crassus, and the slaughter of ten legions. It was a plain of more than sixty miles, which extended from the hills of Carrhae to the Euphrates; a smooth and barren surface of sandy desert, without a hillock, without a tree, and without a spring of fresh water. ^65 The steady infantry of the Romans, fainting with heat and thirst, could neither hope for victory if they preserved their ranks, nor break their ranks without exposing themselves to the most imminent danger. In this situation they were gradually encompassed by the superior numbers, harassed by the rapid evolutions, and destroyed by the arrows of the barbarian cavalry.
The king of Armenia had signalized his valor in the battle, and acquired personal glory by the public misfortune. He was pursued as far as the Euphrates; his horse was wounded, and it appeared impossible for him to escape the victorious enemy. In this extremity Tiridates embraced the only refuge which appeared before him: he dismounted and plunged into the stream. His armor was heavy, the river very deep, and at those parts at least half a mile in breadth; ^66 yet such was his strength and dexterity, that he reached in safety the opposite bank. ^67 With regard to the Roman general, we are ignorant of the circumstances of his escape; but when he returned