OT: Western v. Eastern martial arts

[Omnirizon]

Are there any experts on the martial histories of the West vs the East? Or can anyone de-essentialize these a little for me? In my research the history of 'Eastern' martial arts seems to be concentrated in Japan, Korea, China, and S.E. Asia. Likewise, Western martial arts are located in the fencing schools of Germany, Italy, and France, but there is also some history on French kickboxing, English boxing, and Portugese 'stick fighting'.

While Eastern martial arts have a history and consistent style and terminology that ranges across centuries, Western martial arts that have such consistent focus on style is concentrated in the German and Italian fencing schools, but none of these ranged for more than several decades; never even a century! French and English boxing are really nothing more than informal styles evolved from street fighting. The German and Italian schools may have focused on a weapon (two-handed sword, side sword, rapier) but none of them were tied explicitly to one weapon, and all trained in the use of several weapons or shields and armors, generally as a companion to their favored weapon.

Eastern martial arts seem to be tied explicitly to a single weapon or style, with a history for that style extending for hundreds and hundreds of years. I think this is why we today link the word "martial arts" to "Eastern martial arts". There is a specific style for each specific family of swords, a style for each specific polearm, and style for each specific weapon with its own name and terminology. This is something the West has never had.

So my question is, if I wanted to reduce East v West martial arts down to a form that could be represented in a game, what would the specific effects of learning naginatajutsu vs. learning in a German fencing school be? (consider that the West never even had something so specific as a consistent style tied to a specific polearm like the naginata).

any thoughts on this problem?

also, any thoughts on why so many specific styles were developed in the East but never in the West?