Did Japan really have military divisions during the Sengoku period? Does the Takeda family's military master, Kansuke Yamamoto, really exist? Yamamoto Kansuke in the Warring States Period Military Division "Jiayang Junjian" in the history of Yamamoto Kansuke
![Kansuke Yamamoto, a deified figure in Japan during the Sengoku period, was only because he had a good son[fig]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)