 Later, after the Korean War was signed in 1953, Lee started teaching the returning Yun Moo Kwan Kwon Bop Bu members at the Hankuk Chaeyuk Kwan Dojang.He had conflicts with Chong Woo Lee and left to start his own annex Kwan by setting up a tent at a high school.Later, Chong Woo Lee changed the Yun Moo Kwan Kwon Bop Bu's name to Jidokwan.