During the Jisho-Juei War, he led a large force to fight against MINAMOTO no Yoshinaka and the Taira clan and destroyed them in cooperation with Yoshitsune.
治承・寿永の乱において、頼朝の代官として大軍を率いて源義仲・平氏追討に赴き、義経と共にこれらを討ち滅ぼす大任を果たした。