The Bujinkan or “Divine Warrior House” is an international training association headed by Dr. Masaaki Hatsumi and is based in Chiba Prefecture, Japan. Dr. Hatsumi is the 34th Grandmaster head of nine ko-ryu or feudal-era traditions passed on to him by his teacher, Toshitsugu Takamatsu – the last combat Ninja of the 20th Century.
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