Quintus Petillius Cerialis vs Xiahou Ba

As legate of Legio IX Hispana, Petillius Cerialis marched to relieve the besieged colony of Camulodunum during Boudica's revolt. His force was ambushed and routed by the Iceni; Cerialis escaped with his cavalry, but the legion suffered heavy losses.

During the Year of the Four Emperors, Cerialis was sent to Gaul to crush the Batavian rebellion led by Gaius Julius Civilis. He commanded Roman forces in a series of engagements, ultimately defeating the rebels and restoring order along the Rhine frontier.

Appointed governor of Britain by Emperor Vespasian, Cerialis launched aggressive campaigns against the Brigantes in northern England. He defeated the rebel leader Venutius, captured their stronghold, and extended Roman control into what is now Yorkshire.

Petillius Cerialis held a second consulship as consul suffectus in 74 AD. This rare honor reflected his continued favor under the Flavian dynasty and his successful military and administrative career.

After Sima Yi's coup at Gaoping Tombs, Xiahou Ba, a Wei general, defected to Shu. He feared persecution due to his family ties to the Cao clan. His defection provided Shu with valuable intelligence and a skilled commander.

Xiahou Ba commanded Shu troops in later Northern Expeditions under Jiang Wei. He participated in several campaigns against Wei, using his knowledge of Wei military tactics to aid Shu's efforts.

Xiahou Ba was killed in battle against Wei forces during a campaign led by Jiang Wei. His death marked the end of a prominent defector's career and a loss for Shu's military leadership.