- Apr. 18, 1997
Reorganization of the Joint Chiefs of Staff - The General Staff + 2 Staff Sections + 5 Offices
- Jan. 1, 1995
Reorganization of the Joint Chiefs of Staff - Deputy Chief of Staff (6 Deputy Chiefs of Staff)
- Jun. 30, 1992
Reorganization of the Joint Chiefs of Staff - Director of Joint Staff + Deputy Chiefs of Staff System (3 Headquarters + 4 Deputy Chiefs of Staff)
- Oct. 1, 1990
Reorganization of the Joint Chiefs of Staff (Director of Joint Staff System: 4 Headquarters)
The highest military command authority Guaranteed execution of duty (Jan. 1, 1995: Renamed as Integrated Defense Headquarters)