Roman–Sasanian wars Byzantine–Sasanian Wars The Battle of Amanus Pass took place in 39 BC at the Syrian Gates in the Nur Mountains, after the Parthian defeat in the battle of the Cilician Gates.
Ventidius sent forward one of his officers, Pompaedius Silo, with some cavalry, in order to capture this position.
This move turned the tide of the battle, which resulted in the Parthians being overpowered and defeated.
When Pacorus I of Parthia heard news of this defeat he made the decision to retreat, and went about withdrawing his troops across the Euphrates.
Ventidius did not hinder the Parthian withdrawal and instead proceeded to seize back Syria for the Roman Republic, which he succeeded in doing by early 38 BC.