The United States Goodwill Tang Soo Do Association became a member of of the World Dang Soo Do Union (WDU). The WDU was was founded by Choeng Jae Nim Song Ki Kim (Dan #312), who currently resides in Song Tan, Korea. The WDU was created as organization in which member associations could keep their indepenence, yet interact and support the growth of traditional Dang (Tang) Soo Do worldwide. The World Dang Soo Do Union is not a Federation or and Association. As it's name implies it is a Union of Federations and Associations. Many people are already a part of great Federation or Association, but are looking for something bigger or even just looking for roots back to Korea. For many the WDU provides this. The WDU is headquartered at the historic SoungTan Moo Duk Kwan Dojang in Soungtan, Korea (now a part of Pyongtaek city). The Soungtan dojang was opened by Choeng Jae Nim in 1958 as is currently open today with head Master Kim, Yoon Ki.
The main purpose of the USGTSDA is to benefit the physical and mental health of its members through the practice and development of Tang Soo Do by providing Clinics, Tournaments and other events on a Regional, National and International level.