Coolen Basic Attack System Examination RequirementsJu jitsu is not a sport, but a way of life. When you come to train in my ju jitsu school you start an education, no obligation to do sports and learn tricks but a thorough training of your physical and mental resilience. You can train to a certain level or practice ju jitsu as a life path, even into your old age. In this book you will find a description of the complete Coolen Basic Attack System, level 5e kyu until 1e kyu.