Vercingetorix gathers 250,000 Celts (mostly Gauls) to fight the decisive battle against Caesar’s Romans in the North-East of France, at Alesia, but the Roman military supremacy imposes itself: Caesar has two rings of walls built, one, internal, to besiege Vercingetorix and the civilians of the village, the other, external, to protect himself from the 250,000 Celts who came to his aid, furthermore there were earthworks and additional walls to slow down the charges.
