Chief Instructor Jamey D. Olsen (J.D.) is a highly motivated, focused, and driven martial artist.   He fully understands the meanings of dedication, loyalty, honor, and mission accomplishment.  He has executed successful seminars, designed many successful martial art programs and trained many different types of people from kids to forward deployed military members from the United States and our allies in hand to hand combat.

J.D.'s martial arts quest began when he was a young boy.  After watching martial arts legend Bruce Lee doing moves which seemed to be magical.  During his junior and high school years he earned Black Belts in martial arts styles Tae Kwon Do and Shorei-Ryu Karate.       

After graduating high school, he entered the United States Air Force where he has led teams on explosive ordinance detection and chemical warfare units.  He was also put in charge of vital tasks where he supervised and coordinated teams on projects that were in direct link to the President of the United States requiring top-level security.   

Watching films with martial artist Steven Seagal performing joint locks and throws that he felt would be a great compliment to the techniques he already possessed.  Desiring to learn Aikido from its place or origin J.D. volunteered to take a military assignment to Tokyo, Japan.  While there for almost a decade, he earned Black Belts in Combative Aikido, Jui-Jitsu Submission Fighting, and Modern Kali under Martial Arts Unlimited Director A.J. Weimer.  He has been featured on the Armed Forces Network T.V. stations overseas and has also been featured in newspapers around the world for his accomplishments with self-defense programs, martial arts and the U.S. armed forces.  

He has taught self-defense, hand-to-hand combat, aggressor neutralization, to Law Enforcment, Japanese Defense Force members, correction officers, doctors, lawyers, bodyguards, amatuer Mixed Martial Arts (MMA) fighters and U.S. Military Special Operations members.  With over 30 years of experience, J.D. Olsen is a true professional martial artist. 

 In 2010, J.D. received his third degree black belts in Combative Aikido, Modern Kali, Jui-Jitsu Submission Fighting, and Zembujitsu Total Fighting Concepts, all certified under the United States Martial Arts Association, the Progressive Martial Arts Association and the Martial Arts Unlimited Association.  Currently he holds six third degree Black Belts and one first degree Black Belt.  He is also a Certified BACK OFF! Women's Self-Defense Instructor.  He has also earned the rank of Phase 1 Level 3 under Sifu Ron Balicki in the art of Kali.  He is the director for the Martial Arts Unlimited Association. 

Currently J.D. is the owner and Chief Instructor at Keishidojo Martial Arts & Fitness Center is Sumter SC largest most state of the art premier martial arts facility.  The Dojo is 4000sqft facility of martial arts and fitness equipment. 

He is also a volunteer for the questions and answers service Allexperts.com.  He has answered over 150 questions on various martial arts and self-defense subjects and is now labeled as the "TOP EXPERT" in that subject.