Ōtate no Ran was a battle in the succession struggle that occurred after the death of Uesugi Kenshin. It was fought between the forces of Uesugi Kagekatsu and Uesugi Kagetora, and took place in 1579 in the fief of Echigo. Kagekatsu besieged and took Otate Castle from Kagetora, who committed seppuku the following year, and Kagekatsu ruled over the Uesugi clan.
The original article can be found at Ōtate no Ran and the edit history here.