Today's Karate-do which are remarkably developed and expanded through inside Japan as well as in foreign countries all over the world. On the other hand, the Ryukyu Kobudo, the ancient martial arts of the Ryukyu Islands (especially Okinawa) are related to sisters of Karate-do "Kon, Sai, Nunchaku, Tonfa, Nichokama, Tembe, Suruchin, Tekko, etc" are so far paid no heed compared with Karate-do.
