1After returning to China in June, 1948, he served as the principal of the Army NCO School and director of the National Defense Bureau.1On June 25th, 1950, the Korean War broke out. On the morning of 26th, Cai Bingde, Chief of General Staff, and Shen Xingmo, Minister of National Defense, convened an emergency military consultation meeting, ignoring Kim's suggestion on concentrating troops and negotiating with the government, and made a decision to stick to Seoul. Therefore, he wants to defend all of them. As a result, he wanted to defend the front line in the case of the fall of Seoul, and organized the 1 Corps Command in Shixing area, regrouping the scattered Handu divisions, the third division and the eighth division to form the Han River defense line, which won a week for the US military reinforcements, and then led the troops to withdraw from the Luodong River defense line. Later, I didn't get along well with their Japanese-trained officers. In September of the same year, I became the president of the Army Comprehensive University. 19565438. Since then, he has successively served as ambassador to China (Taiwan Province), head of diplomatic mission in North Korea and foreign minister (196 1 May). 1962 In recognition of his achievements in the independence movement, the Korean government awarded him the People's Republic of China (PRC) Founding Medal. 1965, he strongly opposed the Korea-Japan agreement, so he joined politics, was elected as the seventh generation member of parliament, and served as the leader of the People First Party and the president of the Guangfu Association. His works include "Introduction to National Defense" and "Spiritual Education in the Army".