Hanshi Leon was formally registered with Juko-Kai International® which is one of the oldest Asian recognized martial arts unions of the United States (founded 1961). Hanshi Leon was a personal student of Professor Rod Sacharnoski, Soke/lOth Dan, a world renown martial artist who is one of the few non-Asians to achieve 10th Dan Sokeship (foundership) recognition in Japan and a 9th Dan Hanshi grading in Seidokan Karate, Kobudo and Toide, Okinawa/Japan. Hanshi Leon (9th Degree Black Belt) has now started his own School Yama Arashi Ryu after receiving black belts in several different styles of Okinawan Martial Arts, with over 30 years of training and 22 years of teaching around the United states and Japan. Hanshi Leon received his Kyoshi (Full Instructor) in combat Ki during the Discovery Channels taping of combat KI. Hanshi Leon Craig was the youngest member of Juko-Kai to open his first school at the age of 18 years old in Iowa City, Iowa. Hanshi Leon's lineage can be traced as far back as Kusanku Peichin Takahara.