Koga Ryu

+Koga Ryu is a historic school of [Ninjutsu](/wiki/ninjutsu) originating from the Koga region of [Japan](/wiki/japan). It is one of the oldest traditions associated with stealth, espionage, and unconventional warfare, with its practitioners known as ninja.

+## See also

+- [Iga Ryu](/wiki/iga_ryu)

+- [Ninja](/wiki/ninja)

+- [Martial Arts](/wiki/martial_arts)