All his cavalry being routed, Vercingetorix led back his troops in the same order as he had arranged them before the camp, and immediately began to march to Alesia, which is a town of the Mandubii, and ordered the baggage to be speedily brought forth from the camp, and follow him closely. Caesar, having conveyed his baggage to the nearest hill, and having left two legions to guard it, pursued as far as the time of day would permit, and after slaying about three thousand of the rear of the enemy, encamped at Alesia on the next day. On reconnoitring the situation of the city, finding that the enemy were panic-stricken, because the cavalry in which they placed their chief reliance were beaten, he encouraged his men to endure the toil, and began to draw a line of circumvallation round Alesia.
The town itself was situated on the top of a hill, in a very lofty position, so that it did not appear likely to be taken, except by a regular siege. Two rivers, on two different sides, washed the foot of the hill. Before the town lay a plain of about three miles in length; on every other side hills at a moderate distance, and of an equal degree of height, surrounded the town. The army of the Gauls had filled all the space under the wall, comprising the part of the hill which looked to the rising sun, and had drawn in front a trench and a stone wall six feet high. The circuit of that fortification, which was commenced by the Romans, comprised eleven miles. The camp was pitched in a strong position, and twenty-three redoubts were raised in it, in which sentinels were placed by day, lest any sally should be made suddenly; and by night the same were occupied by watches and strong guards.
The work having been begun, a cavalry action ensues in that plain, which we have already described as broken by hills, and extending three miles in length. The contest is maintained on both sides with the utmost vigour; Caesar sends the Germans to aid our troops when distressed, and draws up the legions in front of the camp, lest any sally should be suddenly made by the enemy’s infantry. The courage of our men is increased by the additional support of the legions; the enemy being put to flight, hinder one another by their numbers, and as only the narrower gates were left open, are crowded together in them; then the Germans pursue them with vigour even to the fortifications. A great slaughter ensues; some leave their horses, and endeavour to cross the ditch and climb the wall. Caesar orders the legions which he had drawn up in front of the rampart to advance a little. The Gauls, who were within the fortifications, were no less panic-stricken, thinking that the enemy were coming that moment against them, and unanimously shout “to arms;” some in their alarm rush into the town; Vercingetorix orders the gates to be shut, lest the camp should be left undefended. The Germans retreat, after slaying many and taking several horses.
Vercingetorix adopts the design of sending away all his cavalry by night, before the fortifications should be completed by the Romans. He charges them when departing “that each of them should go to his respective state, and press for the war all who were old enough to bear arms; he states his own merits, and conjures them to consider his safety, and not surrender him, who had deserved so well of the general freedom, to the enemy for torture; he points out to them that, if they should be remiss, eighty thousand chosen men would perish with him; that, upon making a calculation, he had barely corn for thirty days, but could hold out a little longer by economy.” After giving these instructions he silently dismisses the cavalry in the second watch, on that side where our works were not completed; he orders all the corn to be brought to himself; he ordains capital punishment to such as should not obey; he distributes among them, man by man, the cattle, great quantities of which had been driven there by the Mandubii; he began to measure out the corn sparingly, and by little and little; he receives into the town all the forces which he had posted in front of it. In this manner he prepares to await the succours from Gaul, and carry on the war.
Caesar, on learning these proceedings from the deserters and captives, adopted the following system of fortification; he dug a trench twenty feet deep, with perpendicular sides, in such a manner that the base of this trench should extend so far as the edges were apart at the top. He raised all his other works at a distance of four hundred feet from that ditch; he did that with this intention, lest (since he necessarily embraced so extensive an area, and the whole works could not be easily surrounded by a line of soldiers) a large number of the enemy should suddenly, or by night, sally against the fortifications; or lest they should by day cast weapons against our men while occupied with the works. Having left this interval, he drew two trenches fifteen feet broad, and of the same depth; the innermost of them, being in low and level ground, he filled with water conveyed from the river. Behind these he raised
