The Art of War in the Middle Ages (378-1515). Charles Oman
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of the legionary order of his own day, where the first rank was composed of men retaining shield, pilum, and cuirass (whom he pedantically calls ‘Principes’). The second rank was composed of archers, but wore the cuirass and carried a lance also; only the remaining half of the legion had entirely discarded armour, and given up all weapons but the bow.
Vegetius makes it evident that cavalry, though its importance was rapidly increasing, had not yet entirely supplanted infantry to such a large extent as in the Eastern Empire. Though no army can hope for success without them, and though they must always be at hand to protect the flanks, they are not, in his estimation, the most effective force. As an antiquary he feels attached to the old Roman organization, and must indeed have been somewhat behind the military experience of his day. It may, however, be remembered that the Franks and Allemanni, the chief foes against whom the Western legions had to contend, were--unlike the Goths--nearly all footmen. It was not till the time of Alaric that Rome came thoroughly to know the Gothic horsemen, whose efficiency Constantinople had already comprehended and had contrived for the moment to subsidize. In the days of Honorius, however, the Goth became the terror of Italy, as he had previously been of the Balkan peninsula. His lance and steed once more asserted their supremacy: the generalship of Stilicho, the trained bowmen and pikemen of the reorganized Roman army, the native and foederate squadrons whose array flanked the legions, were insufficient to arrest the Gothic charge. For years the conquerors rode at their will through Italy: when they quitted it, it was by their own choice, for there were no troops left in the world who could have expelled them by force.
The day of infantry had in fact gone by in Southern Europe: they continued to exist, not as the core and strength of the army, but for various minor purposes,--to garrison towns or operate in mountainous countries. Roman and barbarian alike threw their vigour into the organization of their cavalry. Even the duty of acting as light troops fell into the hands of the horsemen. The Roman trooper added the bow to his equipment, and in the fifth century the native force of the Empire had come to resemble that of its old enemy, the Parthian state of the first century, being composed of horsemen armed with bow and lance. Mixed with these horse-archers fought squadrons of the Foederati, armed with the lance alone. Such were the troops of Aetius and Ricimer, the army which faced the Huns on the plain of Chalons.
The Huns themselves were another manifestation of the strength of cavalry; formidable by their numbers, their rapidity of movement, and the constant rain of arrows which they would pour in without allowing their enemy to close. In their tactics they were the prototypes of the hordes of Alp Arslan, of Genghiz, and Tamerlane. But mixed with the Huns in the train of Attila marched many subject German tribes, Herules and Gepidæ, Scyri, Lombards, and Rugians, akin to the Goths alike in their race and their manner of fighting. Chalons then was fought by horse-archer and lancer against horse-archer and lancer, a fair conflict with equal weapons. The Frankish allies of Aetius were by far the most important body of infantry on the field, and these were ranged, according to the traditional tactics of Rome, in the centre:--flanked on one side by the Visigothic lances, on the other by the imperial array of horse-archers and heavy cavalry intermixed. The victory was won, not by superior tactics, but by sheer hard fighting, the decisive point having been the riding down of the native Huns by Theodoric’s heavier horsemen.
To trace out in detail the military meaning of all the wars of the fifth century does not fall within our province. As to the organization of the Roman armies a few words will suffice. In the West the Foederati became the sole force of the empire, so that at last one of their chiefs, breaking through the old spell of the Roman name, could make himself, in title as well as in reality, ruler of Italy. In the East, the decline of the native troops never reached this pitch. Leo I (457–474 A.D.), taking warning by the fate of the Western Empire, determined on increasing the proportion of Romans to Foederati, and carried out his purpose, though it involved the sacrifice of the life of his benefactor, the Gothic patrician Aspar. Zeno (474–491) continued this work, and made himself noteworthy as the first emperor who utilised the military virtues of the Isaurians, or semi-Romanized mountaineers of the interior of Asia Minor. Not only did they form his imperial guard, but a considerable number of new corps were raised among them. Zeno also enlisted Armenians and other inhabitants of the Roman frontier of the East, and handed over to his successor Anastasius an army in which the barbarian element was adequately counterpoised by the native troops.
The victorious armies of Justinian were therefore composed of two distinct elements, the foreign auxiliaries serving under their own chiefs, and the regular imperial troops. The pages of Procopius give us sufficient evidence that in both these divisions the cavalry was by far the most important arm. The light horseman of the Asiatic provinces wins his especial praise. With body and limbs clothed in mail, his quiver at his right side and his sword at his left, the Roman trooper would gallop along and discharge his arrows to front or flank or rear with equal ease. To support him marched in the second line the heavier squadrons of the subsidized Lombard, or Herule, or Gepidan princes, armed with the lance. ‘There are some,’ writes Procopius, ‘who regard antiquity with wonder and respect, and attach no special worth to our modern military institutions: it is, however, by means of the latter that the weightiest and most striking results have been obtained.’ The men of the sixth century were, in fact, entirely satisfied with the system of cavalry tactics which they had adopted, and looked with a certain air of superiority on the infantry tactics of their Roman predecessors.
Justinian’s army and its achievements were indeed worthy of all praise; its victories were its own, while its defeats were generally due to the wretched policy of the emperor, who persisted in dividing up the command among many hands,--a system which secured military obedience at the expense of military efficiency. Justinian might, however, plead in his defence that the organization of the army had become such that it constituted a standing menace to the central power. The system of the Teutonic ‘comitatus,’ of the ‘war-band’ surrounding a leader to whom the soldiers are bound by a personal tie, had become deeply ingrained in the imperial forces. Always predominant among the Foederati, it had spread from them to the native corps. In the sixth century the monarch had always to dread that the loyalty of the troops towards their immediate commanders might prevail over their higher duties. Belisarius, and even Narses, were surrounded by large bodyguards of chosen men, bound to them by oath. That, of the former general at the time of his Gothic triumph amounted to 7000 veteran horsemen. The existence of such corps rendered every successful commander a possible Wallenstein, to use a name of more modern importance. Thus the emperor, in his desire to avert the predominance of any single officer, would join several men of discordant views in the command of an army, and usually ensure the most disastrous consequences. This organization of the imperial force in ‘banda,’15 bodies attached by personal ties to their leaders, is the characteristic military form of the sixth century. Its normal prevalence is shown by the contemporary custom of speaking of each corps by the name of its commanding officer, and not by any official title. Nothing could be more opposed than this usage to old Roman precedent.
The efficiency of Justinian’s army in the Vandalic, Persian, or Gothic wars, depended (as has already been implied) almost entirely on its excellent cavalry. The troops, whether Teutonic or Eastern, against which it was employed were also horsemen. Engaging them the Romans prevailed, because in each case they were able to meet their adversaries’ weapons and tactics not merely with similar methods, but with a greater variety of resources. Against the Persian horse-archer was sent not only the light-cavalry equipped with arms of the same description, but the heavy foederate lancers, who could ride the Oriental down. Against the Gothic heavy cavalry the same lancers were supported by the mounted bowmen, to whom the Goths had nothing to oppose. If, however, the Roman army enjoyed all the advantages of its diverse composition, it was, on the other hand, liable to all the perils which arise from a want of homogeneity. Its various elements were kept together only by military pride, or confidence in some successful general. Hence, in the troublous times which commenced in the end of Justinian’s reign and continued through those of his successors, the whole military organization of the empire began to crumble away. A change not less sweeping than that which Theodosius had introduced was again to be taken in hand. In 582 A.D. the reforming Emperor Maurice came to the throne, and commenced to recast the imperial army in a new mould.
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