His troops had been joined in Picenum by the twelfth, and before Corfinium by the eighth, legion from beyond the Alps, and, besides these, three new legions had been formed partly from the Pompeian men that were taken prisoners or presented themselves voluntarily, partly from the recruits that were at once levied everywhere; so that Caesar before Corfinium was already at the head of an army of 40,000 men, half of whom had seen service.

So long as Domitius hoped for the arrival of Pompeius, he caused the town to be defended; when the letters of Pompeius had at length undeceived him, he resolved, not forsooth to persevere at the forlorn post-- by which he would have rendered the greatest service to his party-- nor even to capitulate, but, while the common soldiers were informed that relief was close at hand, to make his own escape along with his officers of quality during the next night.
Yet he had not the judgment to carry into effect even this pretty scheme.
The confusion of his behaviour betrayed him.

A part of the men began to mutiny; the Marsian recruits, who held such an infamy on the part of their general to be impossible, wished to fight against the mutineers; but they too were obliged reluctantly to believe the truth of the accusation, whereupon the whole garrison arrested their staff and handed it, themselves, and the town over to Caesar (20 Feb.).

The corps in Alba, 3000 strong, and 1500 recruits assembled in Tarracina thereupon laid down their arms, as soon as Caesar's patrols of horsemen appeared; a third division in Sulmo of 3500 men had been previously compelled to surrender.
Pompeius Goes to Brundisium Embarkation for Greece Pompeius had given up Italy as lost, so soon as Caesar had occupied Picenum; only he wished to delay his embarkation as long as possible, with the view of saving so much of his force as could still be saved.

Accordingly he had slowly put himself in motion for the nearest seaport Brundisium.