The Sasanians successfully defended the city and defeated the Roman force.
[3] In line with "Justinianic model", the Romans mobilized garrisoned engineers for the attack, and ordered them to perform a "very complex siege".
[1] According to the Syriac chronicles, however, the Sasanian forces were able to delay the Roman army, allowing them to prepare for extensive defense.
[5] An account also cited a failure of intelligence from Arab clients so that the Romans were unaware of the Sasanian army's movement to the Euphrates junction with the Khabur.
[7] This particular siege lasted six months and the victory gave Khosrow I another important fortress in the eastern Mesopotamia in addition to Nisibis.