Aurelian probably had recognized Zenobia and Vaballathus,…
April 272 CE
Aurelian probably had recognized Zenobia and Vaballathus, who has been campaigning with his forces in the Gallic Empire, but the relationship begins to degenerate when Aurelian begins a military campaign to reunite the Roman Empire.
Seeking to recover the eastern provinces that for ten years have obeyed the rule of the princes of Palmyra, he leads an army to Asia and at Immae, near Antioch, successfully combats Palmyra's famed mounted and armored lancers and archers, commanded by Zenobia’s best general, Zabda.
After a crushing defeat, the remaining Palmyrenes, pursued by the Romans, withdraw in good order to Antioch.