1950.7.8	General Macarthur authorizes the establishment of the National Police Reserve
1951.9.8	49 countries sign Peace Treaty with Japan
1952.8.1	National Safety Agency established
1952.8.1	National Safety College (predecessor of the National Institute for Defense Studies) established
1952.8.1	Technical Research and Development Institute established
1952.10.15	National Safety Force inaugurated
1953.4.1	National Safety Academy (predecessor of National Defense Academy) established
1954.7.1	Defense Agency established; Ground, Maritime, and Air self-Defense Forces inaugurated
1954.7.1	Central Procurement Office( predecessor of Central Contract Office) established
1962.11.1	Defense Facilities Administration Agency established
1974.4.25	National Defense Medical College established
1997.1.20	Defense Intelligence Headquarters established
2000.5.8	Defense Agency moves to the Ichigaya buildings
2007.1.9	Transition to the Ministry of Defense