"Piracy and banditry provided a significant and consistent supply of slaves, though the significance of this source varied according to era and region. Pirates and brigands would demand ransom whenever the status of their catch warranted it. Whenever ransom was not paid or not warranted, captives would be sold to a trafficker. In certain areas, piracy was practically a national specialty, described by Thucydides as "the old-fashioned" way of life. Such was the case in Acarnania, Crete, and Aetolia. Outside of Greece, this was also the case with Illyrians, Phoenicians, and Etruscans. During the Hellenistic period, Cilicians and the mountain peoples from the coasts of Anatolia could also be added to the list. Strabo explains the popularity of the practice among the Cilicians by its profitability; Delos, not far away, allowed for "moving myriad slaves daily". The growing influence of the Roman Republic, a large consumer of slaves, led to development of the market and an aggravation of piracy. In the 1st century BC, however, the Romans largely eradicated piracy to protect the Mediterranean trade routes."
Let us remember that it was Pompey the Great that eradicated the piracy.
Fighting maritime piracy: three lessons from Pompeius Magnus
Christian Schubert & Leonhard K. Lades
Pages 481-497 | Received 25 Oct 2012, Accepted 09 May 2013, Published online: 04 Jul 2013
"Piracy in international waters is on the rise again, in particular off the coast of Somalia. While the dynamic game between pirates, ship-owners, insurance firms and the military seems to have reached some kind of equilibrium, piracy risks generating significant negative externalities to third parties (e.g. in terms of environmental hazards and terrorism), justifying attempts to contain it. We argue that these attempts may benefit from a look back – through the analytical lens of rational choice theory – to the most successful counterpiracy campaign ever undertaken, namely, the one led by the Roman general Gnaeus Pompeius Magnus (Pompey the Great) in 67 BC."
