HistoryData
war-81

Battle between the Roman Republic and the Kingdom of Pontus, 82 BCE

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A Roman defeat at the Halys River ended the Second Mithridatic War and demonstrated the danger of commanders ignoring Senate orders.

Quick Facts

Year
-81
Category
war

Key Facts

Date
82 BC
War
Second Mithridatic War
Roman commander
Lucius Licinius Murena
Pontic commander
Mithradates VI (with general Gordius)
Roman forces
Two legions (Fimbrian legions)
Peace restored
81 BC by Lucius Cornelius Sulla

Location

Map of TurkeyMap of TurkeyTurkey

Cause → Event → Consequence

Cause

Roman general Lucius Licinius Murena, operating overconfidently in Pontic territory, launched three unauthorized raids against Pontus in defiance of Senate orders, provoking open conflict and triggering the Second Mithridatic War. His disregard for diplomatic restraint left his forces exposed and ill-prepared against a capable enemy.

Event

At the Halys River, Murena's Roman forces allowed a small Pontic detachment under general Gordius to delay them until King Mithradates VI arrived with the main Pontic army. The combined Pontic forces then crossed the river under fire and drove the ill-prepared Romans into retreat, resulting in a clear Roman defeat.

Consequence

Following the Roman defeat at Halys, Lucius Cornelius Sulla intervened diplomatically in 81 BC, restoring peace between Rome and Pontus and ending the Second Mithridatic War. The battle highlighted the dangers of unauthorized military adventurism and the limits of Roman regional dominance in Anatolia at the time.

Belligerents & Mobilization Analysis

Side A

1 belligerent

Roman Republic
Key Commanders

Lucius Licinius Murena.

Side B

1 belligerent

Kingdom of Pontus
Key Commanders

Mithradates VI, Gordius.

Outcome
Pontic victory; Romans forced to retreat; peace restored in 81 BC

Timeline Context

Timeline around -81-81-84-83-82-80-79-7882 BCE conflict in Sulla's Second Civil War,battleBattle of Sulla's Second Civil Warbattle-of-halys--81