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Part II.

That public virtue, which among the ancients was denominated patriotism, is derived from a strong sense of our own interest in the preservation and prosperity of the free government of which we are members. Such a sentiment, which had rendered the legions of the republic almost invincible, could make but a very feeble impression on the mercenary servants of a despotic prince; and it became necessary to supply that defect by other motives, of a different, but not less forcible nature - honor and religion. The peasant, or mechanic, imbibed the useful prejudice that he was advanced to the more dignified profession of arms, in which his rank and reputation would depend on his own valor; and that, although the prowess of a private soldier must often escape the notice of fame, his own behavior might sometimes confer glory or disgrace on the company, the legion, or even the army, to whose honors he was associated. On his first entrance into the service, an oath was administered to him with every circumstance of solemnity. He promised never to desert his standard, to submit his own will to the commands of his leaders, and to sacrifice his life for the safety of the emperor and the empire. 33 The attachment of the Roman troops to their standards was inspired by the united influence of religion and of honor. The golden eagle, which glittered in the front of the legion, was the object of their fondest devotion; nor was it esteemed less impious than it was ignominious, to abandon that sacred ensign in the hour of danger. 34 These motives, which derived their strength from the imagination, were enforced by fears and hopes of a more substantial kind. Regular pay, occasional donatives, and a stated recompense, after the appointed time of service, alleviated the hardships of the military life, 35 whilst, on the other hand, it was impossible for cowardice or disobedience to escape the severest punishment. The centurions were authorized to chastise with blows, the generals had a right to punish with death; and it was an inflexible maxim of Roman discipline, that a good soldier should dread his officers far more than the enemy. From such laudable arts did the valor of the Imperial troops receive a degree of firmness and docility unattainable by the impetuous and irregular passions of barbarians.
Footnote 33: The oath of service and fidelity to the emperor was annually renewed by the troops on the first of January.
Footnote 34: Tacitus calls the Roman eagles, Bellorum Deos. They were placed in a chapel in the camp, and with the other deities received the religious worship of the troops. Note: See also Dio. Cass. xl. c. 18. - M.
Footnote 35: See Gronovius de Pecunia vetere, l. iii. p. 120, &c. The emperor Domitian raised the annual stipend of the legionaries to twelve pieces of gold, which, in his time, was equivalent to about ten of our guineas. This pay, somewhat higher than our own, had been, and was afterwards, gradually increased, according to the progress of wealth and military government. After twenty years' service, the veteran received three thousand denarii, (about one hundred pounds sterling,) or a proportional allowance of land. The pay and advantages of the guards were, in general, about double those of the legions.
And yet so sensible were the Romans of the imperfection of valor without skill and practice, that, in their language, the name of an army was borrowed from the word which signified exercise. 36 Military exercises were the important and unremitted object of their discipline. The recruits and young soldiers were constantly trained, both in the morning and in the evening, nor was age or knowledge allowed to excuse the veterans from the daily repetition of what they had completely learnt. Large sheds were erected in the winter- quarters of the troops, that their useful labors might not receive any interruption from the most tempestuous weather; and it was carefully observed, that the arms destined to this imitation of war, should be of double the weight which was required in real action. 37 It is not the purpose of this work to enter into any minute description of the Roman exercises. We shall only remark, that they comprehended whatever could add strength to the body, activity to the limbs, or grace to the motions. The soldiers were diligently instructed to march, to run, to leap, to swim, to carry heavy burdens, to handle every species of arms that was used either for offence or for defence, either in distant engagement or in a closer onset; to form a variety of evolutions; and to move to the sound of flutes in the Pyrrhic or martial dance. 38 In the midst of peace, the Roman troops familiarized themselves with the practice of war; and it is prettily remarked by an ancient historian who had fought against them, that the effusion of blood was the only circumstance which distinguished a field of battle from a field of exercise. 39 It was the policy of the ablest generals, and even of the emperors themselves, to encourage these military studies by their presence and example; and we are informed that Hadrian, as well as Trajan, frequently condescended to instruct the inexperienced soldiers, to reward the diligent, and sometimes to dispute with them the prize of superior strength or dexterity. 40 Under the reigns of those princes, the science of tactics was cultivated with success; and as long as the empire retained any vigor, their military instructions were respected as the most perfect model of Roman discipline.
Footnote 36: Exercitus ab exercitando, Varro de Lingua Latina, l. iv. Cicero in Tusculan. l. ii. 37. 15. There is room for a very interesting work, which should lay open the connection between the languages and manners of nations. Note I am not aware of the existence, at present, of such a work; but the profound observations of the late William von Humboldt, in the introduction to his posthumously published Essay on the Language of the Island of Java, (uber die Kawi-sprache, Berlin, 1836,) may cause regret that this task was not completed by that accomplished and universal scholar. - M.
Footnote 37: Vegatius, l. ii. and the rest of his first book.
Footnote 38: The Pyrrhic dance is extremely well illustrated by M. le Beau, in the Academie des Inscriptions, tom. xxxv. p. 262, &c. That learned academician, in a series of memoirs, has collected all the passages of the ancients that relate to the Roman legion.
Footnote 39: Joseph. de Bell. Judaico, l. iii. c. 5. We are indebted to this Jew for some very curious details of Roman discipline.
Footnote 40: Plin. Panegyr. c. 13. Life of Hadrian, in the Augustan History.
Nine centuries of war had gradually introduced into the service many alterations and improvements. The legions, as they are described by Polybius, 41 in the time of the Punic wars, differed very materially from those which achieved the victories of Caesar, or defended the monarchy of Hadrian and the Antonines. The constitution of the Imperial legion may be described in a few words. 42 The heavy-armed infantry, which composed its principal strength, 43 was divided into ten cohorts, and fifty-five companies, under the orders of a correspondent number of tribunes and centurions. The first cohort, which always claimed the post of honor and the custody of the eagle, was formed of eleven hundred and five soldiers, the most approved for valor and fidelity. The remaining nine cohorts consisted each of five hundred and fifty-five; and the whole body of legionary infantry amounted to six thousand one hundred men. Their arms were uniform, and admirably adapted to the nature of their service: an open helmet, with a lofty crest; a breastplate, or coat of mail; greaves on their legs, and an ample buckler on their left arm. The buckler was of an oblong and concave figure, four feet in length, and two and a half in breadth, framed of a light wood, covered with a bull's hide, and strongly guarded with plates of brass. Besides a lighter spear, the legionary soldier grasped in his right hand the formidable pilum, a ponderous javelin, whose utmost length was about six feet, and which was terminated by a massy triangular point of steel of eighteen inches. 44 This instrument was indeed much inferior to our modern fire-arms; since it was exhausted by a single discharge, at the distance of only ten or twelve paces. Yet when it was launched by a firm and skilful hand, there was not any cavalry that durst venture within its reach, nor any shield or corselet that could sustain the impetuosity of its weight. As soon as the Roman had darted his pilum, he drew his sword, and rushed forwards to close with the enemy. His sword was a short well-tempered Spanish blade, that carried a double edge, and was alike suited to the purpose of striking or of pushing; but the soldier was always instructed to prefer the latter use of his weapon, as his own body remained less exposed, whilst he inflicted a more dangerous wound on his adversary. 45 The legion was usually drawn up eight deep; and the regular distance of three feet was left between the files as well as ranks. 46 A body of troops, habituated to preserve this open order, in a long front and a rapid charge, found themselves prepared to execute every disposition which the circumstances of war, or the skill of their leader, might suggest. The soldier possessed a free space for his arms and motions, and sufficient intervals were allowed, through which seasonable reinforcements might be introduced to the relief of the exhausted combatants. 47 The tactics of the Greeks and Macedonians were formed on very different principles. The strength of the phalanx depended on sixteen ranks of long pikes, wedged together in the closest array. 48 But it was soon discovered by reflection, as well as by the event, that the strength of the phalanx was unable to contend with the activity of the legion. 49
Footnote 41: See an admirable digression on the Roman discipline, in the sixth book of his History.
Footnote 42: Vegetius de Re Militari, l. ii. c. 4, &c. Considerable part of his very perplexed abridgment was taken from the regulations of Trajan and Hadrian; and the legion, as he describes it, cannot suit any other age of the Roman Empire.
Footnote 43: Vegetius de Re Militari, l. ii. c. 1. In the purer age of Caesar and Cicero, the word miles was almost confined to the infantry. Under the lower empire, and the times of chivalry, it was appropriated almost as exclusively to the men at arms, who fought on horseback.
Footnote 44: In the time of Polybius and Dionysius of Halicarnassus, (l. v. c. 45,) the steel point of the pilum seems to have been much longer. In the time of Vegetius, it was reduced to a foot, or even nine inches. I have chosen a medium.
Footnote 45: For the legionary arms, see Lipsius de Militia Romana, l. iii. c. 2 - 7.
Footnote 46: See the beautiful comparison of Virgil, Georgic ii. v. 279.
Footnote 47: M. Guichard, Memoires Militaires, tom. i. c. 4, and Nouveaux Memoires, tom. i. p. 293 - 311, has treated the subject like a scholar and an officer.
Footnote 48: See Arrian's Tactics. With the true partiality of a Greek, Arrian rather chose to describe the phalanx, of which he had read, than the legions which he had commanded.
Footnote 49: Polyb. l. xvii. (xviii. 9.)
The cavalry, without which the force of the legion would have remained imperfect, was divided into ten troops or squadrons; the first, as the companion of the first cohort, consisted of a hundred and thirty-two men; whilst each of the other nine amounted only to sixty-six. The entire establishment formed a regiment, if we may use the modern expression, of seven hundred and twenty-six horse, naturally connected with its respective legion, but occasionally separated to act in the line, and to compose a part of the wings of the army. 50 The cavalry of the emperors was no longer composed, like that of the ancient republic, of the noblest youths of Rome and Italy, who, by performing their military service on horseback, prepared themselves for the offices of senator and consul; and solicited, by deeds of valor, the future suffrages of their countrymen. 51 Since the alteration of manners and government, the most wealthy of the equestrian order were engaged in the administration of justice, and of the revenue; 52 and whenever they embraced the profession of arms, they were immediately intrusted with a troop of horse, or a cohort of foot. 53 Trajan and Hadrian formed their cavalry from the same provinces, and the same class of their subjects, which recruited the ranks of the legion. The horses were bred, for the most part, in Spain or Cappadocia. The Roman troopers despised the complete armor with which the cavalry of the East was encumbered. Their more useful arms consisted in a helmet, an oblong shield, light boots, and a coat of mail. A javelin, and a long broad sword, were their principal weapons of offence. The use of lances and of iron maces they seem to have borrowed from the barbarians. 54
Footnote 50: Veget. de Re Militari, l. ii. c. 6. His positive testimony, which might be supported by circumstantial evidence, ought surely to silence those critics who refuse the Imperial legion its proper body of cavalry. Note: See also Joseph. B. J. iii. vi. 2. - M.
Footnote 51: See Livy almost throughout, particularly xlii. 61.
Footnote 52: Plin. Hist. Natur. xxxiii. 2. The true sense of that very curious passage was first discovered and illustrated by M. de Beaufort, Republique Romaine, l. ii. c. 2.
Footnote 53: As in the instance of Horace and Agricola. This appears to have been a defect in the Roman discipline; which Hadrian endeavored to remedy by ascertaining the legal age of a tribune. Note: These details are not altogether accurate. Although, in the latter days of the republic, and under the first emperors, the young Roman nobles obtained the command of a squadron or a cohort with greater facility than in the former times, they never obtained it without passing through a tolerably long military service. Usually they served first in the praetorian cohort, which was intrusted with the guard of the general: they were received into the companionship (contubernium) of some superior officer, and were there formed for duty. Thus Julius Caesar, though sprung from a great family, served first as contubernalis under the praetor, M. Thermus, and later under Servilius the Isaurian. (Suet. Jul. 2, 5. Plut. in Par. p. 516. Ed. Froben.) The example of Horace, which Gibbon adduces to prove that young knights were made tribunes immediately on entering the service, proves nothing. In the first place, Horace was not a knight; he was the son of a freedman of Venusia, in Apulia, who exercised the humble office of coactor exauctionum, (collector of payments at auctions.) (Sat. i. vi. 45, or 86.) Moreover, when the poet was made tribune, Brutus, whose army was nearly entirely composed of Orientals, gave this title to all the Romans of consideration who joined him. The emperors were still less difficult in their choice; the number of tribunes was augmented; the title and honors were conferred on persons whom they wished to attack to the court. Augustus conferred on the sons of senators, sometimes the tribunate, sometimes the command of a squadron. Claudius gave to the knights who entered into the service, first the command of a cohort of auxiliaries, later that of a squadron, and at length, for the first time, the tribunate. (Suet in Claud. with the notes of Ernesti.) The abuses that arose caused by the edict of Hadrian, which fixed the age at which that honor could be attained. (Spart. in Had. &c.) This edict was subsequently obeyed; for the emperor Valerian, in a letter addressed to Mulvius Gallinnus, praetorian praefect, excuses himself for having violated it in favor of the young Probus afterwards emperor, on whom he had conferred the tribunate at an earlier age on account of his rare talents. (Vopisc. in Prob. iv.) - W. and G. Agricola, though already invested with the title of tribune, was contubernalis in Britain with Suetonius Paulinus. Tac. Agr. v. - M.
Footnote 54: See Arrian's Tactics.
The safety and honor of the empire was principally intrusted to the legions, but the policy of Rome condescended to adopt every useful instrument of war. Considerable levies were regularly made among the provincials, who had not yet deserved the honorable distinction of Romans. Many dependent princes and communities, dispersed round the frontiers, were permitted, for a while, to hold their freedom and security by the tenure of military service. 55 Even select troops of hostile barbarians were frequently compelled or persuaded to consume their dangerous valor in remote climates, and for the benefit of the state. 56 All these were included under the general name of auxiliaries; and howsoever they might vary according to the difference of times and circumstances, their numbers were seldom much inferior to those of the legions themselves. 57 Among the auxiliaries, the bravest and most faithful bands were placed under the command of praefects and centurions, and severely trained in the arts of Roman discipline; but the far greater part retained those arms, to which the nature of their country, or their early habits of life, more peculiarly adapted them. By this institution, each legion, to whom a certain proportion of auxiliaries was allotted, contained within itself every species of lighter troops, and of missile weapons; and was capable of encountering every nation, with the advantages of its respective arms and discipline. 58 Nor was the legion destitute of what, in modern language, would be styled a train of artillery. It consisted in ten military engines of the largest, and fifty-five of a smaller size; but all of which, either in an oblique or horizontal manner, discharged stones and darts with irresistible violence. 59
Footnote 55: Such, in particular, was the state of the Batavians. Tacit. Germania, c. 29.
Footnote 56: Marcus Antoninus obliged the vanquished Quadi and Marcomanni to supply him with a large body of troops, which he immediately sent into Britain. Dion Cassius, l. lxxi. (c. 16.)
Footnote 57: Tacit. Annal. iv. 5. Those who fix a regular proportion of as many foot, and twice as many horse, confound the auxiliaries of the emperors with the Italian allies of the republic.
Footnote 58: Vegetius, ii. 2. Arrian, in his order of march and battle against the Alani.
Footnote 59: The subject of the ancient machines is treated with great knowledge and ingenuity by the Chevalier Folard, (Polybe, tom. ii. p. 233- 290.) He prefers them in many respects to our modern cannon and mortars. We may observe, that the use of them in the field gradually became more prevalent, in proportion as personal valor and military skill declined with the Roman empire. When men were no longer found, their place was supplied by machines. See Vegetius, ii. 25. Arrian.
The camp of a Roman legion presented the appearance of a fortified city. 60 As soon as the space was marked out, the pioneers carefully leveled the ground, and removed every impediment that might interrupt its perfect regularity. Its form was an exact quadrangle; and we may calculate, that a square of about seven hundred yards was sufficient for the encampment of twenty thousand Romans; though a similar number of our own troops would expose to the enemy a front of more than treble that extent. In the midst of the camp, the praetorium, or general's quarters, rose above the others; the cavalry, the Infantry, and the auxiliaries occupied their respective stations; the streets were broad and perfectly straight, and a vacant space of two hundred feet was left on all sides between the tents and the rampart. The rampart itself was usually twelve feet high, armed with a line of strong and intricate palisades, and defended by a ditch of twelve feet in depth as well as in breadth. This important labor was performed by the hands of the legionaries themselves; to whom the use of the spade and the pickaxe was no less familiar than that of the sword or pilum. Active valor may often be the present of nature; but such patient diligence can be the fruit only of habit and discipline. 61
Footnote 60: Vegetius finishes his second book, and the description of the legion, with the following emphatic words: - "Universa quae ix quoque belli genere necessaria esse creduntur, secum Jegio debet ubique portare, ut in quovis loco fixerit castra, arma'am faciat civitatem."
Footnote 61: For the Roman Castrametation, see Polybius, l. vi. with Lipsius de Militia Romana, Joseph. de Bell. Jud. l. iii. c. 5. Vegetius, i. 21 - 25, iii. 9, and Memoires de Guichard, tom. i. c. 1.
Whenever the trumpet gave the signal of departure, the camp was almost instantly broke up, and the troops fell into their ranks without delay or confusion. Besides their arms, which the legendaries scarcely considered as an encumbrance, they were laden with their kitchen furniture, the instruments of fortification, and the provision of many days. 62 Under this weight, which would oppress the delicacy of a modern soldier, they were trained by a regular step to advance, in about six hours, near twenty miles. 63 On the appearance of an enemy, they threw aside their baggage, and by easy and rapid evolutions converted the column of march into an order of battle. 64 The slingers and archers skirmished in the front; the auxiliaries formed the first line, and were seconded or sustained by the strength of the legions; the cavalry covered the flanks, and the military engines were placed in the rear.
Footnote 62: Cicero in Tusculan. ii. 37,15. - Joseph. de Bell. Jud. l. iii. 5, Frontinus, iv. 1.
Footnote 63: Vegetius, i. 9. See Memoires de l'Academie des Inscriptions, tom. xxv. p. 187.
Footnote 64: See those evolutions admirably well explained by M. Guichard Nouveaux Memoires, tom. i. p. 141 - 234.
Such were the art of war, by which the Roman emperors defended their extensive conquests, and preserved a military spirit, at a time when every other virtue was oppressed by luxury and despotism. If, in the consideration of their armies, we pass from their discipline to their numbers, we shall not find it easy to define them with any tolerable accuracy. We may compute, however, that the legion, which was itself a body of six thousand eight hundred and thirty-one Romans, might, with its attendant auxiliaries, amount to about twelve thousand five hundred men. The peace establishment of Hadrian and his successors was composed of no less than thirty of these formidable brigades; and most probably formed a standing force of three hundred and seventy-five thousand men. Instead of being confined within the walls of fortified cities, which the Romans considered as the refuge of weakness or pusillanimity, the legions were encamped on the banks of the great rivers, and along the frontiers of the barbarians. As their stations, for the most part, remained fixed and permanent, we may venture to describe the distribution of the troops. Three legions were sufficient for Britain. The principal strength lay upon the Rhine and Danube, and consisted of sixteen legions, in the following proportions: two in the Lower, and three in the Upper Germany; one in Rhaetia, one in Noricum, four in Pannonia, three in Maesia, and two in Dacia. The defence of the Euphrates was intrusted to eight legions, six of whom were planted in Syria, and the other two in Cappadocia. With regard to Egypt, Africa, and Spain, as they were far removed from any important scene of war, a single legion maintained the domestic tranquillity of each of those great provinces. Even Italy was not left destitute of a military force. Above twenty thousand chosen soldiers, distinguished by the titles of City Cohorts and Praetorian Guard, watched over the safety of the monarch and the capital. As the authors of almost every revolution that distracted the empire, the Praetorians will, very soon, and very loudly, demand our attention; but, in their arms and institutions, we cannot find any circumstance which discriminated them from the legions, unless it were a more splendid appearance, and a less rigid discipline. 65
Footnote 65: Tacitus (Annal. iv. 5) has given us a state of the legions under Tiberius; and Dion Cassius (l. lv. p. 794) under Alexander Severus. I have endeavored to fix on the proper medium between these two periods. See likewise Lipsius de Magnitudine Romana, l. i. c. 4, 5.
The navy maintained by the emperors might seem inadequate to their greatness; but it was fully sufficient for every useful purpose of government. The ambition of the Romans was confined to the land; nor was that warlike people ever actuated by the enterprising spirit which had prompted the navigators of Tyre, of Carthage, and even of Marseilles, to enlarge the bounds of the world, and to explore the most remote coasts of the ocean. To the Romans the ocean remained an object of terror rather than of curiosity; 66 the whole extent of the Mediterranean, after the destruction of Carthage, and the extirpation of the pirates, was included within their provinces. The policy of the emperors was directed only to preserve the peaceful dominion of that sea, and to protect the commerce of their subjects. With these moderate views, Augustus stationed two permanent fleets in the most convenient ports of Italy, the one at Ravenna, on the Adriatic, the other at Misenum, in the Bay of Naples. Experience seems at length to have convinced the ancients, that as soon as their galleys exceeded two, or at the most three ranks of oars, they were suited rather for vain pomp than for real service. Augustus himself, in the victory of Actium, had seen the superiority of his own light frigates (they were called Liburnians) over the lofty but unwieldy castles of his rival. 67 Of these Liburnians he composed the two fleets of Ravenna and Misenum, destined to command, the one the eastern, the other the western division of the Mediterranean; and to each of the squadrons he attached a body of several thousand marines. Besides these two ports, which may be considered as the principal seats of the Roman navy, a very considerable force was stationed at Frejus, on the coast of Provence, and the Euxine was guarded by forty ships, and three thousand soldiers. To all these we add the fleet which preserved the communication between Gaul and Britain, and a great number of vessels constantly maintained on the Rhine and Danube, to harass the country, or to intercept the passage of the barbarians. 68 If we review this general state of the Imperial forces; of the cavalry as well as infantry; of the legions, the auxiliaries, the guards, and the navy; the most liberal computation will not allow us to fix the entire establishment by sea and by land at more than four hundred and fifty thousand men: a military power, which, however formidable it may seem, was equalled by a monarch of the last century, whose kingdom was confined within a single province of the Roman empire. 69
Footnote 66: The Romans tried to disguise, by the pretence of religious awe their ignorance and terror. See Tacitus. Germania, c. 34.
Footnote 67: Plutarch, in Marc. Anton. c. 67. And yet, if we may credit Orosius, these monstrous castles were no more than ten feet above the water, vi. 19.
Footnote 68: Lipsius, de Magnitud. Rom. l. 1. c. 5. The sixteen last chapters of Vegetius relate to naval affairs.
Footnote 69: Voltaire, Siecle de Louis XIV. c. 29. It must, however, be remembered, that France still feels that extraordinary effort.

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Gibbon, Edward, 1737-1794. The history of the decline and fall of the Roman Empire. 1st ed. (London : Printed for W. Strahan ; and T. Cadell, 1776-1788.), pp. 10-18.