(Aikikai Headquarters School). Term used to refer to the AIKIKAI HOMBU headquarters organization which is the administrative descendent of the pre-war KOBUKAN DOJO established by Morihei UESHIBA.
The present organization is headed by Kisshomaru UESHIBA, second aikido DOSHU. The Aikikai organization is worldwide in scope and includes more than 2,000 dojos. It is the largest organizational entity in aikido at the present time. Technically, the dominant force is the flowing, circular approach of Kisshomaru and in recent years there has been a tendency to reduce the number of techniques taught and achieve a standardization for instructional and testing purposes. Present Director of the Hombu Dojo is Moriteru UESHIBA, third Doshu designate. .