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Our Instructor: Background, Training, Certifications

Tactical Studies Group Chief Instructor James L. Berkley has forty-five years of training and instruction experience in various methods of Martial Art, as listed below:


1973 – 1975 — BA Asian Studies at SUNY

Martial Arts Training (1971 – 2000)


Taekwando Chungdokwan

World Taekwando Association (New York, NY)
Master Son Duk Sung 1973

Goju Ryu Karatedo

U.S. Budo Kaikan (New York, NY)

Master C.R. Guy 1976


New York Iaikai (New York, NY)
Master Otani Yoshiteru 1976
Tokyo Sanshinkai (Tokyo, Japan)
Master Mitsuzuka Takeshi 1976

Goju Ryu Karatedo
Zen Nippon Karatedo Renmei Seishikan (Kyoto, Japan)
Master Tada Heiji 1978

Tenshinha Aikido

Aikido Tenshin Dojo (Osaka, Japan)
Master Steven Seagal 1983
Aikido Hombu Dojo (Tokyo, Japan)
Master Ueshiba Kisshomaru 1983

Tactical Pistol / Revolver
Los Angeles, CA
Master Kent Turnipseed 1996

Sayoc Kali (Philadelphia, PA)

Master Christopher Castaneda Sayoc 1999

Pistol, Rifle, Shotgun, Home Firearm Safety, Personal Protection
National Rifle Association of America (Fairfax, VA)
Master Robert Olague 2000

NOTE: All elements of the methods shown above which are taught at Tactical Studies may have been modified and integrated for contemporary use. No ranks, belts or certificates will be issued. Tactical Studies Group claims no affiliation with, nor official representation of any system or organization.

Martial Arts Instruction Experience

Tactical Studies Group will work with you to develop a curriculum around your goals and schedule. For more information on private instruction and group classes, or to schedule a private interview, please call 212-749-1220 or Click Here to Request Information.

For a thorough treatment of our method, read Igensho: The Book of Dignity: General Principles of Martial Art.

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