20In this way he met Pacorus in Syria Cyrrhestica and conquered him. For when he had not prevented them from crossing the river and had not attacked them at once after they had got across, they imputed sloth and weakness to the Romans and therefore marched against their camp, although it was on high ground, expecting to take it without resistance. 2But when a sally was suddenly made, the assailants, being cavalry, were driven back down the slope without difficulty; and although at the foot they defended themselves valiantly, the majority of them being in armour, yet they were confused by the unexpectedness of the onslaught and by stumbling over one another and were defeated by the heavy-armed men and especially by the slingers; for these struck them from a distance with their powerful missiles and so were exceedingly difficult for them to withstand. 3The fall of Pacorus in this struggle was a very great loss to them; for as soon as they perceived that their leader had perished, although a few men zealously fought for his body, yet when these also were slain, all the rest gave way. Some of them desired to escape homeward across the bridge and were unable to do so, being cut off and killed before they could reach it, and others fled for refuge to Antiochus in Commagene. 4Ventidius easily brought into subjection all the rest of Syria, which had been hesitating while awaiting the outcome of the war, by sending the prince’s head about through the different cities; for the Syrians felt unusual affection for Pacorus on account of his justice and mildness, an affection as great as they had felt for the best kings that had ever ruled them. 5And Ventidius himself made an expedition against Antiochus, on the plea that the latter had not delivered up to him the refugees, but really because of the vast wealth which he possessed.