“The best preparation for tomorrow is doing your best today.”

Korean System of Self Defense

Dojunim Ji Han Jae at the opening of the Bruce Lee Museum in Washington State.

Jung Shin Hapkido

 Hapkido roughly translated is the art of coordinating ones power. Hapkido is the primary system of Korean martial art that exists solely and strictly for the purpose of self-defense. So effective is Hapkido, that during the Vietnam conflict, United States special-forces groups were taught the skills of Hapkido as a means of hand to hand combat. Within a scenario of self-defense a hapkidoist usually avoids meeting an attack head on. The Hapkidoist stands his ground and wait for the assault unless the situation warrants for an offensive response. When attacked a hapkidoist’s usual response is to step to the side and deflect the blow before taking the offensive by countering with numerous attacks, taking full advantage of the opponent's momentum and motions. While this is the main course of action taught in hapkido in order to manage conflict, when necessary hapkidoist are taught preemptive techniques that encompass the same physical conflict resolution strategies. The hapkidoist’s objective is to overwhelm the opponent with swift, strong and tremendous force. The hapkidoist achieves this objective through a series of counter-offensive techniques involving strikes, kicks, pressure point strikes, joint locks, sweeps and/or throws. 



Jung Shin Gum Sool

Jung Shin Gum Sool is a Korean martial Art known as “the techniques or way of the sword”. Koguryo Gumsool is the sword art of the ancient Ssabori warriors of medieval Korea. The arts of Korean swordsmanship disappeared after the 40 year occupation of Korea by the Japanese. Most of the Korean Sword arts are recreations of ancient text incorporated to Japanese Tojutsu (刀術) which translates literally as "sword techniques".We follow the philosophical teachings of the Samurangs, their art focused on unifying the body, spirit, and mind, while promoting mental, physical, and spiritual development. The practice of  Koguryo Gumsool  is intended to build both physical and psychological skills. Most importantly Koguryo Gumsool is intended to build and strengthen the practitioners’ characters, ethics and morality. This is accomplished through rigorous training of very specific and detailed sword skills and the application of these skills in fencing.  




  According to the US department of justice a woman is raped every two minutes in America. Statistics suggest that one in every four women in the US are victims of rape or attempted rape. It is the SinMoo Hapkido Jung Shin  Dojang staff commitment to promote healthy social dynamics and ensure that no women in our community is faced with an assailant without the tools to avoid been a victim. It is also our commitment to empower you to never be a victim. The women safety seminars last two hours and are intended for women with no martial arts experience or with vast martial arts experience or just some training, who are seeking exposure to concepts and ideas of de-escalation, self-protection, and environmental -awareness.  It provides concepts that may aid in some defense situations. Concepts taught can be applied to many other applications than those presented in role play and live drills. We can go to you or you can come to us. Call or email to schedule your next event. We are available with two-week notice. Competitive group and individual rates available.   

(specialty program by appointment only call for details)



The STORM programs are a highly specialized programs, tailored for active duty members of the military and law enforcement officers/agents. These specialized programs include close quarter defensive tactics, joint locks for arrest and tactical restraints, weapons retention training and hand to hand combat for both law enforcement and military personal. The skills taught in this curriculum include verbal Hapkido for crisis management and de-escalation of aggression. The technical material reminisces but brings in to modern context the skills taught by Dojunim Ji Han Jae for the Korean Blue House Security Force,  during the Vietnam War training of US Forces and US allies, and training of DEA and OSA agents in the US.  All material has been revised to make it relevant to expectations of professionals' rules of engagement. Taking in to consideration the context of circumstances, conditions, degree, and manner in which the use of force, or actions which might be construed as provocative, may be applied. 

(specialty program by appointment only call for details)



 Evidence Based Martial Arts Applied and Adaptive Programs.  One form of behavior modification is martial arts training, which has been described as providing both physical and psychological benefits for children with emotional and behavioral difficulties  (Lakes & Hoyt, 2004; Richmand & Rehberg, 1986). Among these benefits are discipline, focus, attention, concentration, and acquisition of physical skills (Hiter, 2008). According to Graham (2007), martial arts training focuses on the holistic development of mind and body, and Ripley (2003) argued that such an emphasis distinguishes it from other sports and physical activities. Eastern philosophies, which permeate martial arts, promote good character and nonviolent conflict resolution (Back & Kim, 1978). According to Becker (1992), the philosophical principles behind martial arts help practitioners by providing guidance for daily life. 

(specialty program by appointment only call for details)

Psychiatric De-Escalation program


Dr. Marquez has worked in the field of mental health and behavioral health for 23 years. He has faced the sad reality that even when you want to assist someone, anger, impulse control, psychosis, and or substance use get in the way of the process and places healing professionals in situations that might endanger their lives.   Over the years he has managed to survive multiple encounters of violence and potential violence in community based, inpatient and out patient settings. He has a concise clear trauma informed methodology to understanding mental health related violence, de-escalating a crisis and/or managing a crisis with minimal to no injury to the client thus sustaining the clinical relation. 

 (specialty program by appointment only call for details)