It was 1903, and in less than a year, Japan and Russia would be at war. Russian intelligence officers would have paid dearly for information that Ryohei Uchida was in Vladivostok, Russia and that Japan's first overseas judo dojo, the Urajio, was in reality a secret headquarters for the spy activities of The Kokuryu-kai (the Black Dragon Society).
Front row Left to Right: Ryohei Uchida, K. Iizuka, Sakuzo Uchida, Ikkan Miyakawa. Back Row: Isogai, Nagaoka, Jigoro Kano (seated) Yoshitsugu Yamashita (taught Pres. Teddy Rosevelt Judo).