Caesar's army was now grown very numerous, so that he was forced to disperse them into various camps for their winter quarters, and he having gone himself to Italy as he used to do, in his absence a general outbreak throughout the whole of Gaul commenced, and large armies marched about the country, and attacked the Roman quarters, and attempted to make themselves masters of the forts where they lay.
The greatest and strongest party of the rebels, under the command of Abriorix, cut off Cotta and Titurius with all their men, while a force sixty thousand strong besieged the legion under the command of Cicero, and had almost taken it by storm, the Roman soldiers being all wounded, and having quite spent themselves by a defence beyond their natural strength. But Caesar, who was at a great distance, having received the news, quickly got together seven thousand men, and hastened to relieve Cicero. The besiegers were aware of it, and went to meet him, with great confidence that they should easily overpower such a handful of men. Caesar, to increase their presumption, seemed to avoid fighting, and still marched off, till he found a place conveniently situated for a few to engage against many, where he encamped. He kept his soldiers from making any attack upon the enemy, and commanded them to raise the ramparts higher and barricade the gates, that by show of fear they might heighten the enemy's contempt of them. Till at last they came without any order in great security to make an assault, when he issued forth and put them in flight with the loss of many men.
This quieted the greater part of the commotions in these parts of Gaul, and Caesar, in the course of the winter, visited every part of the country, and with great vigilance took precautions against all innovations. For there were three legions now come to him to supply the place of the men he had lost, of which Pompey furnished him with two out of those under his command; the other was newly raised in the part of Gaul by the Po. But in a while the seeds of war, which had long since been secretly sown and scattered by the most powerful men in those warlike nations, broke forth into the greatest and most dangerous war that was in those parts, both as regards the number of men in the vigour of their youth who were gathered and armed from all quarters, the vast funds of money collected to maintain it, the strength of the towns, and the difficulty of the country where it carried on. It being winter, the rivers were frozen, the woods covered with snow, and the level country flooded, so that in some places the ways were lost through the depth of the snow; in others, the overflowing of marshes and streams made every kind of passage uncertain. All which difficulties made it seem impracticable for Caesar to make any attempt upon the insurgents. Many tribes had revolted together, the chief of them being the Arverni and Carnutini; the general who had the supreme command in war was Vergentorix, whose father the Gauls had put to death on suspicion of his aiming at absolute government.
He having disposed his army in several bodies, and set officers over them, drew over to him all the country round about as far as those that lie upon the Arar, and having intelligence of the opposition which Caesar now experienced at Rome, thought to engage all Gaul in the war. Which if he had done a little later, when Caesar was taken up with the civil wars, Italy had been put into as great a terror as before it was by the Cimbri. But Caesar, who above all men was gifted with the faculty of making the right use of everything in war, and most especially of seizing the right moment, as soon as he heard of the revolt, returned immediately the same way he went, and showed the barbarians, by the quickness of his march in such a severe season, that an army was advancing against them which was invincible. For in the time that one would have thought it scarce credible that a courier or express should have come with a message from him, he himself appeared with all his army, ravaging the country, reducing their posts, subduing their towns, receiving into his protection those who declared for him. Till at last the Edui, who hitherto had styled themselves brethren to the Romans, and had been much honoured by them, declared against him, and joined the rebels, to the great discouragement of his army. Accordingly he removed thence, and passed the country of the Ligones, desiring to reach the territories of the Sequani, who were his friends, and who lay like a bulwark in front of Italy against the other tribes of Gaul. There the enemy came upon him, and surrounded him with many myriads, whom he also was eager to engage; and at last, after some time and with much slaughter, gained on the whole a complete victory; though at first he appears to have met with some reverse, and the Aruveni show you a small sword hanging up in a temple, which they say was taken from Caesar. Caesar saw this afterwards himself, and smiled, and when his friends advised it should be taken down, would not permit it, because he looked upon it as consecrated.