but you are ibteligent! so you say im going to build a wall . two wall two walls that enclose Alesia and you put spikes, thorns, stakes in the ground, etc., etc., well, there are a lot of traps in front of the first wall and inside the wall you make a VILLAGE BECAUSE THAT WAS WHAT JULIUS CAESAR DID a arquitec made a drawing of that based on a book julius wrote describing this but i dont remenber whay his name was . Julius ceaser also put the same traps but inverted in the back part so that Vercingetorix's reinforcements cannot pass either