in 800-900-950 year kievan russ or kievska russ -one of the best country in this period, in all europe (much braver army , also in kievan army heave many merc varjyagy (sweden vikings)Do you have any Kievan history on the Viking eras?
kievan rule SVJATOSLAV -exterminate all khazarian kaganate,broken and capture bulgarian khanate on volga river , Then it has grasped many the Bulgarian cities on the river Danube . kievan army broken and eterminare in many battles byzantium forces, also Svatoslav it has grasped many alanian , kasogian fortres.
when svjatoslav die in battle vs pechenezian nomad tribes -their sun Vladimir create one of the giant army in all kievan russ history 80 000 soldiers .
oleg exterminate many nomad tribes in don steppes and again start war with byzantium empire and win this war .
kievan russ army heave heavy axemen like viking huskarls .
also heavy swordsmen infantry .
slavs use formation shield wall (LAVA wall ) in battle.
70-80 % soldiers in kievan army - infantry
very good morale
also i heave infor in kievan army fight many slavs woomen like men
with sword ,shield and axe- like any soldier.
Knyaz OLEG (?-912year) in 907 year oleg win war with byzantium empire( 40 000 russ warriors army)
knyaz Igor in 941 year fight and again win war vs byzantium empire (40 000 russ warriors)
in 944 year new war
knyaz Svyatoslav(?-972year) (like oleg one of the best warrior and rule - svatoslav in any battle fight in first line, like soldier)
964year svyatoslav take volgabulgaria
965 year svyatoslav take khazarian kaganate (and exterminate on forever)
take kerch , take tamatarha (tmutorakan), sarkel
967-969 svatoslav take 50 % of bulgarian kingdom on danube river
969-971 war vs byzantium empire(russian heave allies - hungrian, bulgarian ,and pechenezian armys)
vladimir (?-1015)
captured vyatichi tribes
radmichi tribes
fight with volga bulgaria again , vs byzantium empire and poland.
989 take hersones fortres in crimea