武神館武道体術 (Bujinkan Budo Taijutsu) is a japanese martial art practiced in several special forces around the world, and it is based on nine ancient martial traditions 古流 (Koryu, ancient Japanese martial arts developed before Meiji Restoration – 明治維新, Meiji Ishin). These teachings were inherited by 初見良昭 (Dr. Masaaki Hatsumi), founder of Bujinkan organization and current grandmaster of these traditions.
Togakure-ryū Ninpō Taijutsu (戸隠流忍法体術)
Gyokko ryū Kosshijutsu (玉虎流骨指術)
Kuki Shinden Ryū Happō Bikenjutsu (九鬼神伝流八法秘剣術)
Koto Ryū Koppōjutsu (虎倒流骨法術)
Shinden Fudo Ryū Dakentaijutsu (神伝不動流打拳体術)
Takagi Yoshin Ryū Jūtaijutsu (高木揚心流柔体術)
Gikan Ryū Koppōjutsu (義鑑流骨法術)
Gyokushin-ryū Ryū Ninpō (玉心流忍法)
Kumogakure Ryū Ninpō (雲隠流忍法)
These traditions are related to 侍 (Samurai) e 忍者 (Ninja) cultures of Feudal Japan. Besides, Hatsumi Sensei trained and researched other traditions those also comprise the taijutsu 体術 (taijutsu, body art) of Budo Taijutsu. Comments of them can be found in his books.
The Budo Taijutsu is an extensive art (after all, it is based on nine martial arts) and dynamic (it improves along the way, it could also be referred as “the never-ending martial way”), although it is based on traditional principles (foundation of the art). Instrutors of the art practice 形 (Kata, main forms), and after practice several aspects of the main form, enhance 変化 (Henka, variations) and mix concepts giving it life. Bujinkan comprises several series of techniques: solo practices, stand-up fighting in various distances, ground-fighting, armed and unarmed fighting, against one or more opponents, mind and body integration.
As a martial art, usually Bujinkan is associated to fight. Still, it is a way that includes different disciplines, such as: walking techniques, meditation, nutrition, for instance. However, the idea is to focus on survival techniques, going beyond that to better life.