sentences:  Prior to his election, Kim Jong-il was elected as first vice Chairman of the National Defense Commission on 24 May 1990 and became the supreme commander of the Korean People's Army on 24 December 1991.Following Kim Il-sung's death on 8 July 1994, another constitutional amendment was approved on 5 September 1998 which further expanded the powers of the Chairman of the National Defense Commission.The amendment enshrined Kim Il-sung as North Korea's eternal President and abolished the position.