Dojo Darelir, the School of Xenograg the Sorcerer

The 6th-century [C.E. Byzantine] soldier was in fact much more than a cavalryman: he had become an all-around mounted warrior. With his bow he could skirmish at a distance, but he was also heavily armoured and well equipped for close mounted combat. When a steady force was needed to hold ground, he was quite happy to dismount and fight as a heavy infantryman. On many occasions Belisarius took only cavalrymen with him, and when Narses needed steady infantry, he dismounted his cavalry.

— Simon MacDowall, Late Roman Cavalryman: 236-565 AD, p. 24

Like the Chinese, the Romans divided the world into civilisation and the lands beyond its sway, and while they sometimes of necessity resorted to diplomacy (in their dealings with the Armenians and other old-established kingdoms, for example), they did so for reasons of expediency alone, not as one state treating with its equivalent. There was, indeed, no reason for them to do so….

— John Keegan, A History of Warfare, pp. 278-79

The Byzantines’ attitude to warfare was different from that of many of their undisciplined nomadic enemies, and from the haphazard attitude to military engagements shown by some western medieval European armies. Strategy was all-important. To win a war by diplomacy or failing that, skirmishes and raids, was preferable to engaging in a pitched battle.

— Ann Hyland, The Medieval Warhorse, p. 27

…The Roman Empire had a well-formulated ideology and institutions of monarchy, and by the late Empire this was an absolute monarchy. Emperors could not always do just what they wanted to do, of course, but the system operated as though the imperial will were all-powerful; no constitutitional mechanism existed to frustrate or modify it. In any premodern absolute monarchy, effective limitations were set by primitive communications networks and by the small size of the civil service, which frequently made it impossible to implement the royal will even when it was accepted as law. The ideology of absolute monarchy was developed out of a Roman law, based on Hellenistic and Oriental traditions, that held that the people had surrendered the natural powers to the monarch and could never revoke the surrender.

— Norman F. Cantor, Inventing the Middle Ages, pp. 104-105

The Byzantine horsed archer was an expert, capable of loosing arrows from either side of the horse while at full gallop, either shooting a fleeing opponent, or defending himself by a ‘Parthian’ shot over the horse’s rearquarters if he himself was fleeing. The method used was a full draw to the right ear which imparted greater poundage to the arrow. The penetrative quality of Roman equipment used at the battle of Callinicum was due to the adoption of the Hunnic bow and the Mongolian release. The Mongolian release, which uses a thumb lock, is faster, whereas the Mediterranean release, using the fingers to draw, is slower and with an oriental bow the fingers would be crushed. Procopius says the bow used by the Persians at Callinicum was much weaker and the arrows unable to pierce armour, even though the rate of delivery was greater.

— Ann Hyland, The Medieval Warhorse, p. 22

Emphasis mine.

That the Romans clearly understood the source of their strength is readily understood from one of the introductory sentences of Vegetius: “We see that the Roman people have conquered the world by nothing other than drill in arms, camp discipline, and experience in campaigning.” The Gauls surpassed them in numbers, the Germans in height, the Spaniards in strength, the Carthaginians in craftiness and resources, the Greeks in the sharpness of their wits, yet the Romans were able to beat them all because of the thorough and rigorous training they gave their recruits, their meticulous attention to the smallest details, and the business-like manner in which they provided materials of war. Results that the Greeks achieved by inspiration, the Romans gained by labored effort. They made war as much a business as an art.

— Eugene S. McCartney, Warfare by Land and Sea, p. 93

Emphasis mine.