Sudis (stake)
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The sudis was a stake carried by Roman legionaries for employment as a field fortification, sometimes also called vallus. It is frequently, but incorrectly, called a pilum murale. Typically, two such
Sudes placed along a rampart and tied together with rope
Sudes used as a simple picket fence
Sudes combined to form a Czech hedgehog
Pilum murale 02
Castra
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Castra is a Latin term used during the Roman Republic and Roman Empire for a military 'camp', and castrum for a 'fort'.
Sudis (stake)
…stakes were used is the subject of debate among experts. It is possible that the stakes were incorporated into the ramparts of a Roman marching camp (castra). Projecting from the ramparts at an angle, they would present a barrier to an attacker attempting to climb up. Alternatively, they could have been…
A lidar view of Cawthorne Camp and forts in North Yorkshire.
Reconstruction of the specula or vigilarium (Germanic burgus), "watchtower", a type of castrum, at Rainau-Buch, Germany. An ancient watchtower would have been surrounded by wall and ditch.
A lidar view of Richborough Castle Roman fort and amphitheatre at the site of Rutupiae and part of Richborough port (HER 1916–1945) in Kent.
Reconstructed east gate of a castrum stativum, a more permanent base, at Welzheim, Germany