Duk Sung Son was a martial artist, Grand Master, 9th degree black belt, CoFounder of the Korean martial art of Tae Kwon Do, successor of Won Kuk Lee and leader of the Chung Do Kwan school . He was also the chief Instructor of the South Korean Army and the Eighth U.S. Army, founder and president of the World Tae Kwon Do Association and author of the books Korean Karate, the Art of Tae Kwon Do and Black Belt Korean Karate .
Duk Sung Son, was born in Seoul, in what is now known as South Korea, on June 17, 1922. At that time South Korea was under the Japanese regime.
Source: Wikipedia