Welcome to Aiki Combat Jujitsu. In this manual Calvin Metz along with his students teaches you his system of Aiki Combat Jujitsu. With 40 years in the martial arts, he has studied Hapkido and Diato Ryu Aiki Jujitsu under Sensei Sterling Dyson. He has blended these styles with many others to make one of the most effective systems of self-defense. This manual goes over the Green belt requirements of Aiki Combat Jujits; there are dozens of colored pictures along with step by step instructions for each move, drill or form. This manual goes hand in hand with his Green Belt DVD's.