Bergwerf Sensei has been teaching Self Defense and combat Judo for over 60 years. He is a professor of Jujutsu, 9th degree black belt and former National Champion in Judo.
Bergwerf Sensei has been teaching Self Defense and combat Judo for over 60 years. He is a professor of Jujutsu, 9th degree black belt and former National Champion in Judo.