Initially used for the protection of Roman generals, the Praetorian Guard became the emperor’s personal guard during the rule of Augustus, first leader of the Roman Empire. Upon his death in 14 CE, however, the Guard began to use its military strength to enforce its own political agenda. Soon, it moved into Rome, where it assassinated emperors, bullied its own prefects, and fought vicious street battles against Roman citizens. Which emperor finally succeeded in fully disbanding the Guard? Discuss