"To arms!" Every centurion was shouting it to his men. The baggage animals were left unladen. A cohort that was about to leave the camp in marching order halted, and began to throw away its impedimenta, when Caesar himself rode up to them. "Fellow-soldiers," said the Imperator, smiling as though he had to reveal a great piece of good fortune, "we can postpone the march. Let us put our hearts into the battle for which we have longed, and meet the foe with resolute souls, for now or never is our opportunity!" "_Io! Io!_" cried a thousand hoarse throats. Out of confusion came the most perfect order. Drusus ran to the horse that he had yielded for a pack animal on the march, saddled, mounted, flew away to Caesar's side, his heart pounding in his breast. "Pompeius is leading out his men!" soldier was shouting to soldier. Legion after legion filed forth from the camp. Caesar, sitting with easy grace on his own favourite charger which he himself had bred, gave in calm, deliberate voice the last orders to his legates. Drusus drew rein at the general's side, ready to go anywhere or do anything that was needed, his position being one of general aide-de-camp. Caesar was facing east; Pompeius, west. Five miles of mainly level country had extended between the camps, but Pompeius had pitched on a hill site, with a river and hills to flank him. There he might safely have defied attack. But he had come down from the eminence. He had led his army out into the plain, and the camp was a full mile behind. The long ranks of the Pompeians were splendid with all the bravery of war. On the right wing by the river lay his Cilician and Spanish cohorts, led by Lentulus Crus,--the flower of the Pompeian infantry. Scipio held the centre with two Syrian legions. On the left, Domitius was in command and Pompeius accompanied him. Seven cohorts were behind in the fortified camp. A great mass of auxiliaries and volunteers, as well as two thousand reenlisted veterans, gave strength to the lines of fully recruited cohorts. Out on the left wing, reaching up on to the foothills, lay the pride of the oligarchs, seven thousand splendid cavalry, the pick and flower of the exiled youth and nobility of Rome, reenforced by the best squadrons of the East. Here Labienus led. The Pompeian ranks were in three lines, drawn up ten deep. Forty-five thousand heavy infantry were they; and the horse and light troops were half as many--Spaniards, Africans, Italian exiles, Greeks, Asiatics--the glory of every warlike, classic race.