 In addition, survivors from the Shōgitai engaged in the fighting, as did the Tosa Jinshōtai and the Shin'itai, a regiment of Shintō priests performing the role of spiritual advisors to the attacking Imperial forces.After a month of siege, in November 6, 1868, Aizu officials agreed to surrender, through the mediation of their neighbor, the Yonezawa Domain.Soon after, Matsudaira Katamori, his son Nobunori, and the senior retainers came before the imperial commanders in person, and offered their unconditional surrender.