Motobu Udun-di was the bujutsu secretly taught to the Okinawan royal family. Motobu Choyu (1857–1927) was the Udun-di instructor to the last Okinawan king. This article/interview details the history of Udun-di, providing an overview of the system, empty-hand forms, weaponry, and associated training. Udun-di uniquely differs from karate.
SOURCE: Journal of Asian Martial Arts, Vol. 5 No. 3 (1996): 24 pages.