The term Praetorian derived from the tent of the commanding general or praetor of a Roman army in the field—the praetorium. They were an elite recruitment of Italians (Roman citizens and Latins). The emperors also often employed a small separate unit of bodyguards, distinct from and, in a degree, as a counterbalance to the Praetorian Guard It was a habit of many Roman generals to choose from the ranks a private force of soldiers to act as guards of the tent or the person. They consisted of both infantry and cavalry. In time, this cohort came to be known as the cohors praetoria, and various notable figures possessed one, including Julius Caesar, Mark Antony and Augustus (Octavian). As Caesar discovered with the Legio X Equestris, a powerful unit more dangerous than its fellow legions was desirable in the field. When Augustus became the first ruler of the Roman Empire in 27 BC, he decided such a formation was useful not only on the battlefield but in politics also. Thus, from the ranks of the legions throughout the provinces, Augustus recruited the Praetorian Guard
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