Complex sentence: From 1957 to 1969 Grand Master Kang served as the Head Instructor of the Korean Central Intelligence Agency (KCIA), formerly known as Korean Military Intelligence Agency and from 1960 to 1968 he was the Commanding Instructor for the Republic of Korea (ROK) Army.
Split into simpler sentences: From 1957 to 1969 Grand Master Kang served as the Head Instructor of the Korean Central Intelligence Agency (KCIA), formerly known as Korean Military Intelligence Agency. From 1960 to 1968 Grand Master Kang was the Commanding Instructor for the Republic of Korea (ROK) Army.