Augustus disbanded the unruly multitudes who had crowded into the service of the great military chieftains of the civil wars. He strained every nerve to gorge them with the largesses for which alone they would forego the periodical plunder of unoffending cities, in which their leaders had been compelled to indulge them. But while they were reposing upon their estates, or rioting with their profuse gratuities, he speedily remodelled his military establishment, and equipped a force of twenty-five legions for the defence of the empire. He fixed a reasonable scale of pay for every armed man in his service, from the rank and file of the cohorts to the “lieutenant of the emperor with proconsular rank.” The proconsular armies were maintained and paid by the machinery of the proconsular government in the provinces; so that the emperor, without being ostensibly the paymaster of the legions, did in fact, through his lieutenants, hold the purse upon which they depended. We have seen how incompetent we are to state the salary of the provincial governor; nor can we estimate the pay of the various grades of officers. We only know that the simple legionary received one denarius daily, a sum which may equal eightpence half-penny of English money. A part of this sum was stopped for his arms, implements, and accoutrements; but he retained perhaps a larger proportion of it than the pocket money of the British private, and the simple luxuries of the wine shop were cheap and accessible. Marriage was strongly discouraged, and generally forbidden in the Roman ranks, and the soldier’s allowance was perhaps chiefly expended in averting the blows of the centurion’s vine-staff, and buying occasional exemption from the fatigues of drill and camp duty. If we are justified in drawing an inference from the proportion observed in a military largess in the time of Cæsar, we may conjecture that the centurion received double, and the tribunes four times, the pay of the legionary.
The full complement of each of the twenty-five legions was 6100 foot, and 726 horse; and this continued with occasional variations, to be the strength of the legion for a period of four hundred years. The cohorts were ten in number; and the first, to which the defence of the eagle and the emperor’s image was consigned, was nearly double the strength of the others. These brigades became permanently attached to their distant quarters: in later times the same three legions occupied the province of Britain for two or more centuries. They were recruited ordinarily from the countries beyond Italy; in the first instance, from the Roman citizens in the provinces. But even while the rights of citizenship were extended, this restriction was gradually relaxed; and instead of being the requisite qualification for admission to the ranks, the freedom of the city was often bestowed on the veteran upon his discharge. Numerous battalions of auxiliaries, differently arrayed and equipped from the legionaries themselves, continued to be levied throughout the most warlike dependencies of the empire, and attached to each legionary division. It is generally computed that this force equalled in number that of the legions themselves, and thus we arrive at a total of 340,000 men, for the entire armies of the Roman Empire, exclusive of the battalions maintained in Rome itself.
Augustus may be regarded as the founder of the naval power of the great military republic. She had exerted indeed her accustomed vigour on more than one occasion in equipping powerful fleets, in transporting military armaments, and sweeping marauders from the seas; but the establishment of a permanent maritime force, as one arm of the imperial government, was reserved for the same hand which was destined to fix the peace of the empire on a firm and lasting basis. While the influence of Rome extended over every creek and harbour of the Mediterranean, she had no rival to fear on the more distant coasts of the Atlantic Ocean or the Indian Ocean. But experience had shown that the germ of a great naval power still continued to exist in the inveterate habits of piracy, fostered throughout the inland seas by centuries of political commotion. The Cilician corsairs had distressed the commerce and insulted the officers of the republic; the armaments of Sextus had taken a bolder flight and menaced even the city with famine; a conjuncture might not be distant when the commander of these predatory flotillas would dispute the empire itself with the imperator of the Roman armies. Augustus provided against the hazard of such an encounter by equipping three powerful fleets. One of these he stationed at Ravenna on the upper, a second at Misenum on the lower sea, a third at Forum Julii (Fréjus) on the coast of Gaul. The two former squadrons amounted to 250 galleys each, the third to about half that number. Besides these armaments he posted a smaller flotilla on the Euxine, and established naval stations on the great frontier rivers, the Euphrates, the Danube, and the Rhine.[e]
Roman Ship with Scaling Ladder, for attacking a Sea Wall
It was only to be expected that the victor of Actium should not neglect the fleet, to which he owed everything, to the same extent as the republic had done; and as matter of fact he made a permanent navy the counterpart of his standing army. Up to that time Rome had only fitted out a fleet, or caused her allies to fit it out, for some definite purpose, and had dismissed it at the conclusion of the war. Augustus realised that a change must be made in this respect now that the whole coast of the Mediterranean was Roman and the sea had become the centre of the empire.
His first care was to construct the requisite naval ports. The Adriatic coast of Italy is not rich in harbours, even leaving naval ports out of the question. Brundusium was too much of a trading mart to come into consideration as a possible naval station for the empire; while Ravenna, farther to the north, near the delta of the Po, appeared to answer the end the emperor had in view. The place was easy to defend on account of the marshes about it; the harbour, though none of the best, was capable of improvement; and by means of the imperial canal (Fossa Augusta) Augustus secured a communication between his new naval station and the southern mouth of the Po. This was an advantage as far as the provisioning of the forces was concerned, for the produce of the fertile basin of the Po could thus be shipped direct to Ravenna; on the other hand it probably accelerated the silting up of the harbour. The whole scheme seems to have been put in hand shortly after the battle of Actium, for we meet with what appears to be a reference to these works in the writings of Valgius Rufus in the first years of the empire.
During the civil wars the fleet had used the Julian harbour on the west coast of Italy, but its inconvenient entrance and deficient anchorage unfitted it for a regular naval station. It was therefore abandoned in favour of the neighbouring harbour of Misenum, which surpassed even that of Ravenna in importance.
From both stations small bodies of men used to be detached to Rome to protect the emperor and the capital. The marines naturally did not find much to do at Rome; when the emperor arranged a sea fight (naumachia) he counted, of course, upon their co-operation, at other times they were deputed to spread the awnings at the entertainments given to the people.