Alesia's fortifications

Alesia's fortifications were a sophisticated set of defensive earthworks built by the Gauls around their stronghold in the 1st century BC, to defend against Julius Caesar's Roman forces. They included a double wall system—an inner and outer ring—linked by trenches, ditches, and watchtowers, creating a nearly impenetrable barrier. These fortifications also featured obstacles like spike-filled pits and ramparts to slow or deter attackers. The intricate design allowed the Gauls to hold out against a much larger Roman army for weeks, showcasing advanced military engineering aimed at maximizing defense and strategic advantage.