A Parthian embassy appeared in Syria in the spring to remonstrate against the faithlessness of Rome, but at the same time the Parthians were ready for war. Surenas, with Silaces, satrap of Mesopotamia, was pressing the Roman garrisons, and prepared to confront Crassus with an army wholly composed of cavalry, while Orodes in person invaded Armenia. In the spring of 53 B.C., Crassus and his son Publius crossed the Euphrates at Zeugma with seven legions and eight thousand cavalry and light troops, making up a total of forty-two or forty-three thousand men, and was persuaded by Abgar of Orrhoene to leave the river and march straight across the plains to Surenas. Surenas kept the mass of his troops concealed by a wooded hill, showing only the not very numerous vanguard of cataphracts till the Romans were committed to do battle. The Roman cavalry charged the enemy to prevent a threatening flank movement, and were drawn away from the mass of the army by the favourite Parthian manœuvre of a simulated flight.[c] So vivid a picture of the ferocity of this battle is given in Plutarch’s _Life of Crassus_, that we may well quote it here.[a] PLUTARCH’S ACCOUNT OF THE BATTLE OF CARRHÆ [Sidenote: [53 B.C.]] The enemies seemed not to the Romans at the first to be so great a number, neither so bravely armed as they thought they had been. For, concerning their great number, Surenas had of purpose hid them, with certain troops he sent before; and to hide their bright armours he had cast cloaks and beasts’ skins upon them, but when both the armies approached near the one to the other, and that the sign to give charge was lift up in the air: first they filled the field with a dreadful noise to hear. For the Parthians do not encourage their men to fight with the sound of a horn, neither with trumpets nor hautboys, but with great kettle-drums hollow within, and about them they hang little bells and copper rings, and with them they all make a noise everywhere together, and it is like a dead sound, mingled as it were with the braying or bellowing of a wild beast, and a fearful noise as if it thundered, knowing that hearing is one of the senses that soonest moves the heart and spirit of any man, and makes him soonest beside himself.