Like the career of the senators, that of the equestrians included both military and civil appointments. At the outset of his _cursus honorum_ the equestrian held several military appointments, which somewhat later came regularly to include a prefecture of a corps of auxiliary infantry, a tribunate of a legionary cohort, and a prefecture of an auxiliary cavalry corps. Thereupon he was eligible for a procuratorship, that is, a post in the imperial civil service, usually in connection with the administration of the finances. After filling several of these procuratorships, of which there were a great number of varying importance, an equestrian might finally attain one of the great prefectures, as commander of the city watch, administrator of the corn supply of Rome, commander of the imperial guards, or governor of Egypt. At the end of his equestrian career he might be enrolled in the senatorial order. Thus through the imperial service the equestrian order was bound closely to the princeps and from its ranks there gradually developed a nobility thoroughly loyal to the new régime. *The Comitia and the plebs.* The _comitia_, which had so long voiced the will of the sovereign Roman people was not abolished, although it could no longer claim to speak in the name of the Roman citizens as a whole. It still kept up the form of electing magistrates and enacting legislation, but its action was largely determined by the recommendations of the princeps and his tribunician authority. While the city plebs, accustomed to receive its free distributions of grain, and to be entertained at costly public spectacles, was a heavy drain upon the resources of the state, the vigorous third estate in the Italian municipalities supplied the subaltern officers of the legions. These were the centurions, who were the mainstay of the discipline and efficiency of the troops, and from whose ranks many advanced to an equestrian career. III. THE MILITARY ESTABLISHMENT *Reorganization of the army.* Upon his return to Italy in 30 B. C., Augustus found himself at the head of an army of about 500,000 men. Of these he released more than 300,000 from service and settled them in colonies or in their native municipalities upon lands which it was his boast to have purchased and not confiscated. This done, he proceeded to reorganize the military establishment. Accepting the lessons of the civil wars, he maintained a permanent, professional army, recruited as far as possible by voluntary enlistment. This army comprised two main categories of troops, the legionaries and the auxiliaries.