薩長同盟
During the Boshin War of the Meiji Restoration, he led Saga’s forces as a component the Satchō Alliance in support of Emperor Meiji, after the Battle of Toba–Fushimi and fought against the Tokugawa remnants at the Battle of Ueno and in the various campaigns in northern Japan against the Ōuetsu Reppan Dōmei.