| 1956 |
Infantry platoon leader |
| 1960 |
English Translation official of Intelligence Corp |
| 1961 |
Intelligence officer of Counterintelligence Corps |
| 1966 |
Head officer of Counterintelligence Corps |
| 1968 |
Battalion commander of Capital Defence Command |
| 1971 |
Infantry regimental commander |
| 1974 |
Brigade commander of Ranger |
| 1978 |
Operative Vice-chief of President Security Service |
| 1979 |
9th beffin division(al) commander |
| 1979-1980 |
8th major general of Capital Defence Command |
| 1980-1981 |
Military security commander |
| 1981 |
Tansfered into the army general |
| 1981-1982 |
The 2nd minister without portfolio |
| 1982 |
The chief delegate of high level talks |
| 1982-1982 |
The 1st Ministry of Education and Science |
| 1982-1983 |
The 41th Ministry of Home Affairs |
| 1983-1986 |
Chairperson of Seoul Olympic An Organization Committee |
| 1984-1985 |
28th Chairperson Korean Olympic Committee |
| 1984 |
KOC Chairperson |
| 1984-1986 |
Chairperson of Seoul Asian Games Organizing Committee |
| 1985-1987 |
5th delegate of Democratic Justice Party |
| 1985-1987 |
12th member of the National Assembly(National Democratic Party) |
| 1987-1987 |
Acting President of Democratic Party |
| 1987-1990 |
Acting P2nd president of Democratic Partyesident of Democratic Party |
| 1987-1988 |
Honorary president of Democratic Party |
| 1988-1993 |
13th President |
| 1990-1990 |
1st 3 co-representative of Democratic Liberal Party |
| 1990-1990 |
2nd supreme council representative of Democratic Liberal Party |
| 1993 |
Chairman of the National Unification of Advisory Council |
| 1991 |
Honorary member of International Rotary Club, Paul Harris Society |
| 1990-1992 |
1st President of Democratic Liberal Party |
| 1992-1992 |
Honorary President of Democratic Liberal Party |
| 1992 |
Withdrawal from Democratic Liberal Party |
| 1993 |
Member of conference of the elder statesmen of Korea Constitutional Assembly |
