Suruga Province and Mikawa Province were attacked from the east and west and occupied by the Takeda clan and Tokugawa clan (renamed from the Matsudaira clan) in mere several years.
わずか数年の間に領国駿河国と三河国を武田氏と徳川氏（松平氏改め）によって東西から瞬く間に切り獲られた。