In 1936 , Choe graduated from the Republic of China Military Academy , and served as a Republic of China Army officer . When World War II ended , Choe was promoted to colonel . After the war Choe returned to South Korea and entered the national army academy as a second lieutenant . In 1949 , Choe entered the United States Military Academy . On July 14 , 1950 , Choe returned to South Korea . Choe served as a commanding general of the South Korean 11th Division under the United States IX Corps during the Korean War . His division carried out the Sancheong-Hamyang and Geochang massacres . After the military coup , from 1961 to 1963 , Choe served as a Foreign Minister and Ambassador to West Germany
Geochang
Geochang massacre
Choe Deok-sin