Regarding Unarmed Defence against weapons we have the KEMPO sets
STORM for club and stick
LANCE for knife
ROD for gun
There is a lot of crossover, many Lance and Storm techniques relate, and some Storm techniques work for the SHOTO short sword and against weapons like the Machete
In TAIJUTSU we have MUTODORI in KOSHI Jutsu and KOPPO Jutsu
The full KATANA defence techniques, developed by NINJA for defence against Samurai
The Chudan middle level of the GYOKKO Ryu deals with TANTO knife and SHOTO Short Sword MUTODORI techniques
The principles of TAIJUTSU and MUTODORI are interchangeable, especially in GYOKKO Ryu - we can fully practice weapons defence without the partner actually holding a weapon - and a lot of principles and movement practiced in Mutodori comes out in Unarmed Taijutsu
