Counterattack by Nobunaga ODA and Ieyasu TOKUGAWA became more aggressive now that the Takeda forces had suffered a defeat in the Battle of Nagashino, losing many powerful military commanders and causing a disturbance in the territory.
長篠の戦いで敗北を喫し多くの有力武将を失い領国の動揺をも招いた武田に対し、織田信長・徳川家康の反攻は更に積極的になる。