David John Hall Martial Art School

David John Hall Hapkido and Tae Kwan Do Schools are martial art schools that have taught over 12000 students basic self defense techniques. For about three decades, Grandmaster K.S. Hyun has taught martial arts to various individuals and groups in the United Sates; he is one of the few Hapkido Black Belts in the United States. These martial art schools have classes for children teenagers and adults.