Battle of Alesia

The Battle of Alesia (September 52 BC) was a battle between the Guals and the Romans, lead by Julius Caesar. It was the last major battle between the Guals and the Romans.
The Romans surrounded the Guals, and built another fortification around the Guals fortification, trapping them in. The Guals tried to attack from the inside and outside, but the Romans cavalry helped sustain the fort. In one night, the Guals tried a suprise attack, but Caesar eventually won. 
This victory was one of Caesar's most impressive victories.