In the process, the Goths seized enormous booty and took thousands into captivity.
In 286 AD, Carausius, a Roman military commander of Gaulish origins, was appointed to command the Classis Britannica, and given the responsibility of eliminating Frankish and Saxon pirates who had been raiding the coasts of Armorica and Belgic Gaul.
Constantly raiding the Adriatic Sea, the Illyrians caused many conflicts with the Roman Republic.
The lack of centralized powers all over Europe during the Middle Ages enabled pirates to attack ships and coastal areas all over the continent.
Piracy is an act of robbery or criminal violence by ship or boat-borne attackers upon another ship or a coastal area, typically with the goal of stealing cargo and other valuable items or properties.
Those who engage in acts of piracy are called pirates.
Historic examples include the waters of Gibraltar, the Strait of Malacca, Madagascar, the Gulf of Aden, and the English Channel, whose geographic structures facilitated pirate attacks.
Privateering uses similar methods to piracy, but the captain acts under orders of the state authorizing the capture of merchant ships belonging to an enemy nation, making it a legitimate form of war-like activity by non-state actors.