Dublado e Legendado no OverFlix. Learn core defensive tactics with this step-by-step program from self-defense expert Jim Wagner. Based on military and police methods, this course covers threat zones, angled arm blocks, conflict stances, Wagner's own piston arm strikes and more. The course also covers proper head-butting techniques, leg strikes and counters, stopping power and the legalities of the use of force -- all strategies that are easy to learn and teach.