The Parthian forces fled to the Amanus Pass , where they again engaged in combat with Ventidius ' army ; again they were defeated .
Pacorus had to withdraw Ventidius ' army from Syria , which was then retaken by the Romans and placed forces ' their control .
The Parthian forces fled to the Amanus Pass , where they again engaged in combat with Ventidius ' army ; again they were defeated and Pacorus had to withdraw his army from Syria , which was then retaken by the Romans and placed under their control .