Tuesday, May 19, 2026

Kasugayama Nikki Okehazama


 Happy Battle of Okehazama Day! Today's post will be different. Believe or not, the first mention of the Battle of Okehazama did not come from Owari, Mikasa, Totomi, or Suruga. It came from Echigo. The home province of Uesugi Kenshin. If everything is true and correct, it was recorded not long after the Battle of Okehazama. The first recording of the Battle of Okehazama comes from the Kasugayama Nikki. In Ota Teruo's Kikei Okehazama kassen no Shinjitsu page 3 has a small passage. One of the key words was kikei (ingenious plan) and fuiuchi (surprise attack). The Kasugayama Nikki does provide some clues what happen during the Battle of Okehazama. Nobunaga planned something out of the ordinary and there was possibly a surprise attack. 

It is highly possible that Uesugi Kenshin sent spies or scouts to observe the battle. I highly believe that happened. As for the area where the battle took place, the Kasugayama Nikki mentioned the word Okehazama.  One of the first recordings of Okehazama. It is  possible the scouts or spies did not know the true name of the area and mentioned the area as Okehazama to be on the safe side. Actually, while the Kasugayama Nikki does give historians a clue on what happened at Okehazama, there is always more questions than answers.


Nobunaga no tame!

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