XLIIL-Between the town of Ilerda and the next hill, on which Afranius and Petreius were encamped, there was a plain about three hundred paces broad, and near the middle of it an eminence somewhat raised above the level: Caesar hoped that if he could get possession of this and fortify it, he should be able to cut off the enemy from the town, the bridge, and all the stores which they had laid up in the town. In expectation of this he led three legions out of the camp, and, drawing up his army in an advantageous position, he ordered the advanced men of one legion to hasten forward and seize the eminence. Upon intelligence of this the cohorts which were on guard before Afranius's camp were instantly sent a nearer way to occupy the same post. The two parties engage, and as Afranius's men had reached the eminence first, our men were repulsed, and, on a reinforcement being sent, they were obliged to turn their backs and retreat to the standards of legions. XLIV.--The manner of fighting of those soldiers was to run forward with great impetuosity and boldly take a post, and not to keep their ranks strictly, but to fight in small scattered parties: if hard pressed they thought it no disgrace to retire and give up the post, being accustomed to this manner of fighting among the Lusitanians and other barbarous nations; for it commonly happens that soldiers are strongly influenced by the customs of those countries in which they have spent much time. This method, however, alarmed our men, who were not used to such a description of warfare. For they imagined that they were about to be surrounded on their exposed flank by the single men who ran forward from their ranks; and they thought it their duty to keep their ranks, and not to quit their colours, nor, without good reason, to give up the post which they had taken. Accordingly, when the advanced guard gave way, the legion which was stationed on that wing did not keep its ground, but retreated to the next hill.