LXXIX.--Their manner of fighting was this: the light cohorts closed their rear, and frequently made a stand on the level grounds. If they had a mountain to ascend, the very nature of the place readily secured them from any danger; for the advanced guards, from the rising grounds, protected the rest in their ascent. When they approached a valley or declivity, and the advanced men could not impart assistance to the tardy, our horse threw their darts at them from the rising grounds with advantage; then their affairs were in a perilous situation; the only plan left was, that whenever they came near such places, they should give orders to the legions to halt, and by a violent effort repulse our horse; and these being forced to give way, they should suddenly, with the utmost speed, run all together down to the valley, and having passed it, should face about again on the next hill. For so far were they from deriving any assistance from their horse (of which they had a large number), that they were obliged to receive them into the centre of their army, and themselves protect them, as they were daunted by former battles. And on their march no one could quit the line without being taken by Caesar's horse. LXXX.--Whilst skirmishes were fought in this manner, they advanced but slowly and gradually, and frequently halted to help their rear, as then happened. For having advanced four miles, and being very much harassed by our horse, they took post on a high mountain, and there entrenched themselves on the front only, facing the enemy; and did not take their baggage off their cattle. When they perceived that Caesar's camp was pitched, and the tents fixed up, and his horse sent out to forage, they suddenly rushed out about twelve o'clock the same day, and, having hopes that we should be delayed by the absence of our horse, they began to march, which Caesar perceiving, followed them with the legions that remained. He left a few cohorts to guard his baggage, and ordered the foragers to be called home at the tenth hour, and the horse to follow him. The horse shortly returned to their daily duty on march, and charged the rear so vigorously, that they almost forced them to fly; and several privates and some centurions were killed. The main body of Caesar's army was at hand, and universal ruin threatened them.