Although the Takeda clan in Kai ruined the Imagawa clan and defeated troops of Tokugawa and Oda in the battle of Mikatagahara, its westward advance was stopped because of Shingen's death.
甲斐の武田氏が今川氏を滅ぼし1573年に三方ヶ原の戦いで徳川、織田両軍を撃破するも信玄の死で武田軍の西進が頓挫した。