Background: The Heiho Yukan, which translates as “Exemplary Strategies”, is a secret document regarding military matters. Said to have originated from the instructions of strategist Yamamoto Kansuke, it gives an inside look on the different methods for establishing one’s stronghold, as well as the source from where such knowledge would be learned from & depended on.
The lessons found in the Heiho Yukan were transcribed to individuals granted access to it, were then copied and given an official seal. In reality, there are numerous versions of this document. Due to this, depending on the source and what was transcribed, the contents, along with their details, may differ between the different sources.
- Heiho Yukan 1790
- Heiho Yukan Shō