Black Dragon Society
The Black Dragon Society (Kyūjitai; 黑龍會; Shinjitai: 黒竜会, Kokuryūkai), or the Amur River Society, was a prominent paramilitary, ultranationalist group in Japan. == History == The Kokuryūkai was founded in 1901 by martial artist Uchida Ryohei as a successor to his mentor Mitsuru Tōyama's Gen'yōsha.