@Maroon just want to point out that out of the 3 Great Magus Families who always try to participate in the war none of them are "native" japanese, infact the Tohsaka's are probably the closest as they were originally *"Hidden Christians that lived inside a then foreigners-intolerant Japan"* though i am assuming they were foreigners back then rather than adopting foreigner traditions while still being Japanese (also the Tohsaka mansion is Western)
Obviously the Einzberns are German as that's where the main castle is located. the Makiri/Matou are Russian but were chased out. they claim their…