Martial Arts Hall of Fame Inductee Master Jeff Allen began Hapkido training in 1976 at the age of 7.  In 1990, he moved to South Korea, studied Asian Naturopathy/Chiropractic, and taught Hapkiyoosool at the headquarters in Korea directly under Grandmaster Chang, returning to the US in 2000 to open a school. In the top 1% of martial artists in the world, he is one of the most talented and highly educated instructors in the world today, with 47 years of experience in Hapkiyoosool. Master Allen is prior military intelligence and continues instructing Military Special Operations and other governmental personnel.