|By Sensei Robert Koga Volume 3: This volume demonstrates defensive nerve pressure applications, such as breaking chokes, headlocks, and bear hugs, as well as more on stretching and other warm-ups to improve techniques. Approx. 55 min. Sensei Robert Koga worked the mean streets of Los Angeles, California and became the premiere law-enforcement instructor for the LAPD and countless other agencies in the U.S. and around the world. In this 5 DVD Series, he takes us beyond the theory and into the real world of Practical Aikido to teach techniques that have been tried and proven in real-life situations. This series represents one of the finest and more comprehensive works ever presented on this subject.