How a Roman supply convoy turned the tide against the King of Pontus
The Battle of Cabira was a decisive Roman victory that shattered the forces of Mithridates VI. While the conflict involved grand maneuvers, it was ultimately decided by the failure of the Pontic king to intercept Roman supply lines, leading to the total disintegration of his army and his eventual flight.
The conflict between the Roman Republic and Mithridates VI of Pontus had deep roots, escalating after the king ordered the slaughter of 80,000 Italians in the Asian Vespers. By 74 BC, the death of King Nicomedes IV of Bithynia and the subsequent Roman inheritance of his kingdom pushed the two powers toward open war. Mithridates invaded Bithynia in 73 BC, forcing Roman proconsul Lucius Licinius Lucullus to intervene. After a successful campaign at Cyzicus, where Lucullus starved out the Pontic army, the Roman commander moved to invade the Pontic heartland through Galatia in 72 BC.
Near Cabira, Mithridates assembled a new force of 40,000 men, including 4,000 cavalry. Lucullus initially struggled, suffering setbacks in early skirmishes and surviving an assassination attempt. However, the strategic situation shifted when Mithridates attempted to disrupt Roman supply lines coming from Cappadocia. Two heavily armed Roman convoys, commanded by Sornatius and Marcus Fabius Hadrianus, successfully repelled Pontic attacks. In the second engagement, Roman troops exploited the narrow terrain to neutralize the Pontic cavalry, destroying half of the attacking force.
The disaster proved fatal to the morale of the Pontic army, especially after Hadrianus paraded the spoils of victory past the king's camp. As rumors of retreat spread, Mithridates attempted to flee, causing his army to disintegrate entirely. Lucullus seized the moment, ordering his legions to crush the fleeing forces and loot the camp. Mithridates escaped to Armenia to seek refuge with his son-in-law, Tigranes, but the defeat forced him to abandon his kingdom. Lucullus subsequently organized Pontus as a Roman province, setting the stage for his later invasion of Armenia in 69 BC.
The aftermath of the battle was marked by the brutal finality of ancient warfare. Before fleeing, Mithridates ordered his eunuch, Bacchus, to execute his wives, sisters, and concubines. When the Roman envoy Appius Claudius demanded the surrender of Mithridates from Tigranes, the Armenian king refused, choosing instead to prepare for war. This refusal ensured the conflict would continue, eventually drawing Lucullus into the Armenian heartland.
Source: Battle of Cabira
