The Defense Training Institute teaches an extremely realistic and versatile discipline of self protection that includes an extensive variety of strikes, kicks, joint locks, ground grappling & weapons training. The result is a practical, comprehensive Self-Defense system that's dynamic in its intensity. You will see no fancy kicks and flashy techniques, everything is done in close proximity to your opponent as you learn to strike, grab, takedown,  control and if necessary, remove yourself from a hostile encounter.  

Jun Sa Kwan is a hybrid martial arts system that's concepts are based on scientific principles of anatomy, combat tactics and strategy while also giving respect to the philosophies of ancient warrior traditions.

The emphasis is on redirecting the assailants’ aggression and power back toward them by restraining their movement, controlling the body and if necessary, subduing them. 


Edgardo "Eddie" Perez,팔단 8°

Chief Master Instructor

Hapkido Kwan Jang Nim 


Founder, JunSaKwan

Watch Commander, Police (ret.)

Edgardo Pérez is married with two children. He is a military veteran (USAF/Security Police) and a retired police officer with over 30 years of police service and over 40 years of study in the martial arts. He is an 8th Degree Master in Hapkido, founder of JunSaKwan Hapkido, founder of Guazabara Caribbean Knife & Stick Fighting, a Police Combatives Instructor, a full Instructor in Filipino Eskrima (Largo Mano Style) and a student of Brazilian Jiu-Jitsu.


In 1979 Master Perez began his formal Hapkido training in Aurora, Il. under the tutelage of the Fowler Brothers (GM Kwang Seek Hyun/Chicago).  He later continued his training in South Korea under Grandmaster Yu Chong Su (Dojunim Choi Yong Sool).


For the past 40 years he has continued to train in the martial arts  while teaching local, county and state police personnel in police combatives. In 1998 he founded the Martial Arts Gang Intervention Club (MAGIC) and the Defense Training Institute. 


Perez has been inducted into various martial art Halls of Fame. He currently serves as a sworn deputy with the  Kane County Sheriff’s Office in the Tactical Training Division as the Defensive Tactics Coordinator.


Chief Instructor

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