Must have DVD! You can know all striking and punching techniques, but if you can not take your opponent down your sparring can go forever. Takedowns are the simplest way of winning any fight. One your opponent is down, in 99% the fight is completed and you are the winner. Systema Spetsnaz shows several easy and effective applications. Simple and highly effective!! It is not just throwing techniques that Judo uses, it is an advanced system, where you are using leverages. Very impressive!!