Chung graduated from the first class of the Korea Military Academy in 1946 and was commissioned into the South Korean army . He was in Hawaii undergoing military training at the start of the Korean War . He arrived in Korea on June 30 , and was immediately promoted to major general and replaced General Chae Byeong Deok as commander of the Republic of Korea Army . Serving as a tactical commander and then major general in the Korean War , Chun Il Kwon , organized the South Korean soldiers at Inchon . His initial responsibilities included regrouping the routed Korean military forces and coordinating their efforts with the United Nations command . He was the commander of all ROK forces in Pusan from July – August , which would place him at the attack of Inchon . This was known for incapacitated the North Korean Army and leaving him a well-known war hero . He returned to the United States for additional training in July 1951 following the National Defense Corps Incident and the Geochang massacre . However , on his return in July 1952 he was demoted by President Syngman Rhee to a divisional command and sent to a front-line combat unit . Three months later , he was promoted to deputy commander of the IX Corps ( United States ) commanding front line UN forces in numerous offensives and counteroffensives . Three months after this , he was again promoted to command the Korean II Corps , which he held until the end of the war
Geochang massacre
Geochang massacre
Chung Il-kwon