In Korean martial artsvideo footage recently shot at the Black Belt studios, hwa rang do grandmaster Taejoon Lee— co-author of the Korean martial arts book Hwa Rang Do: Defend, Take Down, Submit— demonstrates what's known as yongtoogi. According to Fernando Ceballos, the author of the cover story for Black Belt's August/September 2014 issue, yongtoogi is stand-up and submission fighting. It's one of 10 categories of competition — including grappling, sword fighting, stick fighting, empty-hand forms, weapon forms and so on — that take place at the Hwa Rang Do World Championships