He recalled several legions and ordered reinforcements to return to Rome from Gaul under the command of the future emperor Publius Licinius Valerianus .
With a usurper , supported by Pauloctus , threatening the throne , Gallus prepared for a fight .
Gallus recalled several legions and ordered reinforcements to return to Rome from Gaul under the command of the future emperor Publius Licinius Valerianus .
With a usurper , supported by Pauloctus , threatening the throne , Gallus prepared for a fight .