German textbooks don't skip over the Holocaust.
Well everyone's different I guess. I'm just glad their military is tiny now.
Pretty much every nation covers up their past atrocities, maybe Germany is an exception I guess. But thats because everyone knows about it.
And a ryu is a style. Kenjutsu is not usually taught in schools, but only master to student. The only time I've seen a dojo being taught (proper) Kenjutsu is when a Westerner achieved Menkyo (master) certification from a current master of the ryu, then proceeds to teach in an open dojo style in the Western countries. Another case is Shinkendo, which is very cool IMHO.