|By Sensei Robert Koga Volume 5: In the final volumen of the series, Sensei Koga addresses defense against attackers with weapons including knives, clubs, and guns. 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.