United Martial Arts Association

Koyama Dojo, located in Livonia, MI, serves as the Honbu Dojo for Hakko Denshin Ryu JuJutsu (HDRJJ) in North America, adhering to the teachings of Shodai Soke Lamonica. With over 25 years of teaching experience, the dojo emphasizes a traditional one-on-one instructional style to effectively impart the art of self-defense and personal growth. Rooted in ancient samurai techniques from the Genji Clan, Hakko Denshin Ryu JuJutsu provides students with effective methods to defend against larger attackers by utilizing natural movements. The dojo offers a structured curriculum for all skill levels, fostering rapid progress and confidence in its students through dedicated training. Generated from the website

At Commonwealth Jiu-Jitsu, youll find your new home away from home. Our casual, fun training environment is open to all, regardless of experience level or competitive goals. As a new martial arts school in Livonia, we aim to bring something different to the world of Jiu-Jitsu. Here youll find an unmatched level of personal attention and care, and a concerted effort to eliminate the mental and financial barriers that often prevent people from pursuing martial arts training. Now offering Jiu-Jitsu, Judo, and Muay Thai classes for both kids and adults!