The Ministry of War or, sometimes called Tsuwamono no Tsukasa, was a division of the eighth century Japanese government of the Imperial Court in Kyoto,[1] instituted in the Asuka period and formalized during the Heian period. The Ministry was replaced in the Meiji period.
The highest-ranking official or was ordinarily a son or a close relative of the Emperor. This important court officer was responsible for directing all military matters; and after the beginning in the late 12th century, this military man would have been empowered to work with the shogunate on the emperor's behalf.[2]
The ambit of the Ministry's activities encompasses, for example:
The ministry was established as part of the Taika Reforms and Ritsuryō laws which were initiated in the Asuka period and formalized during the Heian period. After 702, the Hyōbu-shō replaced the Hyōseikan, which was created in 683.[4]
In the Edo period, titles associated with the ministry became ceremonial titles.
In the Meiji period, the hyōbu-shō was reorganized into a modern Ministry of War and Ministry of the Navy.
The Asuka-, Nara- and Heian-period Imperial court hierarchy encompassed a ministry dealing with military affairs.
In the 18th century, the top ritsuryō officials within this ministry structure were: