Urbanization
The Third Augustan Legion was not only a source of protection for the Roman Empire, but it was also largely responsible for the urbanization of the North African provinces. The Legion was initially stationed in Ammaedara (modern day Haidra) where they built their first military camp. From there they invested part of their time in the construction of roads, beginning expansion. These new connections led to the development of new towns and cities for civilians, camps for the military and even colonies for the veterans. These were usually distinct from each other, but as time progressed they began to merge. The Legion did not always build up the entire town; civilians often assisted in the building of some projects. The most common projects for soldiers were aqueducts, fortifications and amphitheaters. Typically their work was for more “monumental projects” rather than “pure architecture.” The legion was not therefore solely a military force but also undertook engineering and surveying functions requiring an advanced mix of skills.
Read more about this topic: Legio III Augusta