Jiichi Watanabe was a well-known Judo instructor in Japan. A sixth-degree black belt, he was one of the pioneers in the scientific study of Judo. Lindy Avakian was a respected Judo instructor. He served in the US Air Force, studying Judo in Japan in the early 1950s. He completed the first foreign instruction course at the Kodokan Judo Institute in Tokyo in 1956. During his time in the military, he trained US Special Forces in self-defense. Neil Ohlenkamp has been a Judo instructor for over 45 years. He is a 7th degree black belt and was head coach of the U.S. Judo squad at 2 Paralympic Games. He is a member of the Kodokan Judo Institute and head instructor at the Encino (CA) Judo Club. He is the author of Judo Unleashed: Essential Throwing & Grappling Techniques for Intermediate to Advanced Martial Artists.