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
Sexuality in ancient Rome insult against a husband who failed to prevent it. Despite the external controls and restrictions placed on a slave's sexuality, Roman art and literature perversely often portray slaves as lascivious, voyeuristic, and even sexually knowing. One of the themes of Roman comedy that distinguishes it from its Greek models is the depiction of master-slave relations. Freeborn Romans who fell into slavery were supposed to be protected from sexual exploitation, as indicated by two different stories recorded by ancient historians. Before the abolition of debt bondage in the 4th century BC, free Romans were sometimes driven to sell themselves or their