
Often, Vallum's would be used to mark boundaries after their use as a fortification was ended. An advancing Enemy could be impaled this from two points.

The farthest and top spike were exposed from the earth.

The far rear and bottom extension served to hold the Spike in the ground. Joined in the center (and looking very much as a wheel spoke), it was placed inside (anchored) of the earthen berm. The Vallum Spike was a cross shaped device made of wood. Whereas The Sudis was a single sharpened wooden spike, driven into the ground to impede Enemy movement during any attack, The Vallum Spike was a form of Cheval de Frise (seen in use centuries later). The Vallum Spike was seen as a more permanent defensive/offensive device. Unlike the previously discussed Sudis – or Camp Spike. In cases of a more permanent ''Base Camp'' (long term), Vallum's were equipped with a further protective device known as a ''Vallum Spike''. Slaves were not used and The Vallum's construction was by it's Soldiers. In a circular pattern, The Vallum would encircle a Roman Camp (Legion).
#VALLUM CARDS SERIES#
The Vallum could be a series of non-connected trenches (squared) or a complete circular pattern.

This process was continued onward I the direction needed. Dug only several feet deep, the earth from this trench would be thrown onto the above ground and used as an earthen berm or embankment. In The Roman attempts, The Vallum was by nature – a simple ditch. Although Roman by design, The Vallum style of fortification may have been borrowed by several similar field engineering models of Ancient Greece. It was further most commonly seen in Roman Colonies or during Roam expansion into potential Territories. The Vallum was a form of Ancient Roman Military Field Engineering, most seen in the 2nd and 3rd Century AD.
