There are a lot of Martial Arts DVDs that are teaching specific self-defense techniques. This DVD is unique. It teaches the mentality of Russian Spetsnaz soldier, which in my opinion is extremely important. By knowing Russian Spetsnaz psychology, by understanding their missions, seeing old footage from War, I can relay to what a soldier might feel and go through. You can practice combat techniques, but by understanding what it means to be a Spetsnaz soldier, by feeling it with your heart will make your technique more effective. After watching this Systema DVD I noticed that my body started moving differently. It's like an actor - once you feel the role - you don't have to think how to act, you are just doing it. Same is here! Very, Very good approach. You can learn a lot from history and spetsnaz mentality!!! Go to a deeper level. This is the path to Russian Spetsnaz mastery!