Kantō-kai
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The Template:Nihongo was a Japanese underworld organization formed by Yoshio Kodama in 1964, and named for the Kantō region from which it drew most of its membership. Kodama envisioned the Kantō-kai as a secret national police force, with the aim of forwarding the far right-wing views he and other organized criminals often held.
Kodama had originally envisioned a Japan-wide gangster society, but in 1963 Kazuo Taoka and his Kansai-based Yamaguchi-gumi gang refused to join, leaving Kodama with a Kantō-heavy organization.<ref>Yakuza: Japan's Criminal Underworld, David E. Kaplan, 2003</ref>
The group disbanded in January 1965, after only fifteen months, but was a crucial step in uniting the many post-war gangs into a more coherent entity (the modern yakuza) instead of disparate, warring factions.