strength of the Romans, while neutralizing the personal courage and endurance that set apart his own forces.
Julius Caesar did arrive at Alesia and found more than 100,000 Gauls entrenched in the city and ready to resist any attack by his 60,000 Romans, auxiliary, and German cavalry. He could not leave that large an army in his rear. Vercingetorix was right; Caesar could not continue to Provence. It was also obvious that attacking the high walls of Alesia with almost double their number in defenders behind them would have been suicidal for the Romans.
So Caesar did not attack.
Instead he ordered his army to begin building a wall around the entire city. Crossing two rivers and fronted by a twenty-foot-deep trench, Caesar’s inner wall ran for ten miles and completely cut off Alesia. There was a tower every 120 feet and all sorts of traps and sharp objects scattered in front of the wall that served to break up any Gallic attack. And the Roman legionnaires could dig. Every night they fortified their camps within walls made from stakes they carried on the march. The walls around Alesia soon proved as immune to attack as the walls of that city itself.
So the Gauls waited vainly for a Roman attack that never came. By locking himself up in a city, Vercingetorix had managed to take a great field army and trap it inside Roman walls. He had turned it from a battle of swords and spears to one of shovels and picks. He had managed to put his larger army in a position in which they had to fight on Roman terms, and no one could dig, build, or defend any wall better than the Roman legionnaires.
When it became obvious he was under siege and unable to break out, the Gallic leader sent out riders to summon all the warriors not trapped in Alesia to come to his relief. They got out just before the first wall was completed, but not without the Romans learning of their mission. Knowing that someday another army would most likely appear to relieve the siege of Alesia, Caesar ordered yet another wall built. This wall faced outward and ran for fourteen miles. By the time the relief army arrived, the second wall was finished. It all came down to a climactic battle fought among the Roman walls.
Vercingetorix also now had a serious problem: Inside Alesia they had run out of food. He had already driven out the women and children, whom Caesar refused to let pass out through his walls. So they starved, exposed just below the city’s walls and in sight of their husbands and fathers. The Gauls had to break through both walls and free Vercingetorix’s army or starvation alone would force it to surrender.
Over 200,000 more Gauls, less well organized but ready to fight, appeared outside one section of the walls. The Romans were facing perhaps nearly 300,000 Gallic warriors inside and out with 40,000 legionnaires and 15,000 other auxiliaries, including 5,000 Germanic horsemen. They were outnumbered six to one, but they were fighting their kind of battle. The battle was fought on Roman terms and amid the Roman fortifications. Even so, the final confrontation at Alesia was a close thing and only a last-minute charge by the Germanic cavalry saved the day.
The relief army was stopped, broken, and scattered. The men in Alesia remained trapped and starving. A few days later, Vercingetorix personally rode into the Roman camp and surrendered his army. His 90,000 warriors became slaves and never again did the Celts of Gaul resist rule by Rome.
Vercingetorix made one mistake in an otherwise brilliant revolt. He voluntarily trapped his army inside Alesia in a position that played to the Romans’ strengths and nullified his own. Had Caesar attacked, the Romans would have suffered terrible casualties, but in war you should never assume the enemy will do what you want. Had the Gallic army of 300,000 warriors met Caesar in an open field, they might well have triumphed. If Vercingetorix had not made the mistake of locking his army inside Alesia, France, then the
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