These ideas were picked up by a young Raymond Belle, who used them to practical effect while separated from his family during the First Indochina War. When he moved to France and started a family, he passed on these ideas to his son, David. 30 years later, other young people were attracted to these ideas and a small group formed, the Yamakasi, which included Foucan. This group trained together for several years and in 1997, through David Belle's brother, Jean-Francois, they started to attract attention and be invited to perform at events. The Yamakasi eventually split apart, though, because some members sought to find more individual expressions of the discipline.