When Julius Cæsar was in Rome, after six years of stubborn conflict, after incredible suffering and bloodshed, the heart of the people though bowed down was not broken.
There lived among the Arvernians, in the high mountainland, among the volcanic peaks of Auvergne, as it is now called, a young chief, whose real name is not known, but whom history calls Vercingetorix, that is, Head over a Hundred Tribes. The time was come for an united, determined, and desperate resistance. He sent messengers throughout Gaul. The downtrodden inhabitants rose to a man and invested Vercingetorix with the chief command.
In the year of Rome 702, B.C. 32, Cæsar was suddenly informed in Italy that his work of six years was threatened with ruin. Most of the Gallic nations, united under a chieftain hitherto unknown, were rising with one common impulse, and recommencing war.
Cæsar at once returned to Gaul. He had one quality, rare even amongst the greatest men, he remained cool amidst the hottest alarms. He was always quick, never hasty. He placed himself at the head of his troops, and, in the early part of March, moved to what is now Sens, the very centre of revolt, and looked round to decide where first to strike.
Vercingetorix from the outset knew that the ill-armed and worse disciplined Gauls could not cope in the open field with Cæsar and the Roman legions; he therefore formed a plan of campaign that required great sacrifices on the side of the Gauls, for the sake of the common safety. No walls, he assured the confederates, could withstand the skill of the Romans in engineering, no array maintain itself in the field against their phalanx. But he reminded them that through the winter and early spring the soil on which the enemy trod could not furnish him with provision. He must disperse his troops among the fortresses. Let then, said he, no further attempts be made to defy the Roman in the open field; let him rather be followed in detail, and cut off when separated into cantonments, and above all, let the towns that served him for magazines be destroyed by the hands of the inhabitants themselves. He recommended in fact the very course pursued more than eighteen hundred years later by the Russians against the French Cæsar, a course which proved fatal to him.