In Hyuk Suh has written:

'Kuk Sool Won Textbook'

'Kuk Sool Won, traditional Korean martial art' -- subject(s): Kuk Sool Won

Kuk Sool Won is a type of Martial Arts training which is often practiced in Korea. It is a form of great discipline and traditions of using ones inner power. In the UK, there are many places where one can find Kuk Sool Won classes. In cities such as London, there is Kuk Sool Won London South as well as other Martial Arts studios offering Kuk Sool Won.

South Korea

it goes white belt, yellow belt, blue belt,red belt, brown belt,with 8-10 tabs before getting black belt, whic you can get 9 dans in. i do kuk sool won myself

depends on how hard you train