 Complete the following phrase:  During the reign of Augustus, Germanicus enjoyed an accelerated political career as the heir of the emperors heir, entering the office of quaestor five years before the legal age in AD 7. He held that office until AD 11, and was elected consul for the first time in AD 12. The year after, he was made proconsul of Germania Inferior, Germania Superior, and all of Gaul. From there he commanded eight legions, about one-third of the entire Roman army, which he led against the Germanic tribes in his campaigns from AD 14 to 16. He avenged the Roman Empires defeat in the 