[john70t]

Boudica led the Briton revolt against the Romans who expanded the settlement of Londoninum into a trading town. Most large cities are near water. Greatly outnumbered, the Romans took a defensive position in a high valley protected on three sides and tore through her ranks in a jagged wave of upset victory. I've heard a few times that offensive maneuvers against defensive positions require 3-5 times the numbers.