In 229 BC, Roman galleys sailed into the Adriatic Sea to confront pirates operating from the coast of modern-day Albania and Croatia. The Romans fought three distinct conflicts against the kingdom of the Ardiaei during this period. These wars spanned from 229 BC through 168 BC and targeted a specific southern region along the Dinaric Alps. In 168 BC, Roman forces abolished the Ardiaean kingdom entirely. They divided the territory into three separate republics under their control. Livy recorded these events in his history of Rome, noting the strategic shift from protectorate status to direct rule. Pirates continued raiding north-eastern Italy despite the initial victories. Octavian later launched campaigns between 35 BC and 33 BC to secure the inland areas. This series of military actions established Roman dominance over the entire Adriatic coastline.
Provincial Division And Administration
Gaius Vibius Postumus served as the military commander of Dalmatia under Germanicus in 9 AD. Velleius Paterculus wrote about this command in his compendium of Roman history. His text represents the earliest surviving writing that indicates the province of Illyricum comprised both Dalmatia and Pannonia. An inscription on the base of a statue of Nero was erected between 54 AD and 68 AD by a veteran of a legion stationed in Pannonia. This artifact suggests a separate Pannonia existed at least since the reign of Nero. However, Šašel-Kos points out an inscription attesting a governor of Illyricum under Claudius who ruled from 41 AD to 54 AD. A military diploma published in July 61 AD mentioned units of auxiliaries from the Pannonian part of the province were stationed in Illyricum. These conflicting records led scholars to believe the dissolution occurred during the reign of Vespasian between 69 AD and 79 AD. The administrative organization of Illyricum took place late in the reign of Augustus and early in the reign of Tiberius.