Well, firstly, that the armor of the Byzantines and the steppe are very different. Moreover, that if Georgia and Armenia have had very close relations with Byzantium (History knows no small number of military commanders as Armenians and Georgians in Byzantium, and mercenaries), while Alan armor, and art itself closer to the war no longer existed at that time of the Khazar Khanate, to extend its influence over much of the Northern Caucasus (For example see Volga Bulgaria). For example, compare the heavy cavalry of Cilician Armenia and Georgia and Byzantium. She was obviously created in the image Katafrakt ... Secondly, the close cultural and ethnic ties between nomads Fore and the Black Sea, on the one hand, and agricultural areas of the Caucasus, on the other hand, most notably manifested in the military field. Every innovation, whether in weapons or means of warfare, quickly spread to a very wide area. It can be traced not only to many common types of weapons, but also common tactical principles.
I will lay with the chores, and prepare information on the same principle, as he did on the Russian principalities