Defence in depth in order to retreat successfully, and they assume that the defender's morale will recover from the retreat. A possible early example of this came at the Battle of Cannae in 216 BC, when Hannibal employed this manoeuvre in order to encircle and destroy eight Roman legions, but that is disputed by some historians. Edward Luttwak used the term to describe his theory of the defensive strategy employed by the Late Roman army in the 3rd and 4th centuries AD. Later examples of defence in depth might be European hill forts and the development of concentric castles. In those examples, the
Gaius Octavius (tribune 216 BC) Gaius Octavius (tribune 216 BC) Gaius Octavius (fl. 216 BC) was a Roman army officer who was active during the third century BC. He was the son of the equestrian Gaius Octavius and grandson of the quaestor Gnaeus Octavius Rufus, also the father of Velitrae's magistrate Gaius Octavius, grandfather of praetor Gaius Octavius and great-grandfather of Roman emperor Augustus (reigning 27 BC - 14 AD). When Marcus Antonius tried to show his contempt against Augustus, he said that Octavius was a freedman and rope-maker from Thurii. During the Second Punic War, Octavius served as military tribune and participated in the