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 requirements for Black Belt in Aiki Combat Jujits; this manual is designed to add the student while they are learning our system not teach it to them. This book goes hand in hand with the DVD. There are no pictures but a complete description of all the requirements that are needed for this belt including katas and drills.