On May 25, 1953, while the war was still raging, representatives of the five original kwans (Song Moo Kwan, Chung Do Kwan, Yun Moo Kwan/Ji Do Kwan, Chang Moo Kwan and Moo Duk Kwan) met in Pusan and formed the Korea Kong Soo Do Association.
After the war ended, Hong Hi Choi and Nam Tae Hi founded the Oh Do Kwan within the military and for military personnel only, although it had strong links with the civilian Chung Do Kwan which Choi later founded in 1954.