CHOI, Nam-sung is a taekwondo pioneer who was one of the founders of taekwondo in Argentina. Choi was originally from a northern Korean village; the withdrawal of American troops in 1950 forced the family to move south separately. As a twelve-year old boy he ended in an orphanage, and he eventually learned to survive in the streets as a child selling smuggled goods. He learned martial arts to deal with gangs that attempted to rob him of his earnings.