Yoshinaka fortified his defense in Kyoto and readied himself to fight at the outbreak of the war against Kamakura GENJI army; however, because of a string of reckless violence since the incarceration of the Monk-Emperor, the KISO Genji army ran away one by one from the face of the enemy, and Yoshinaka was defeated in the battles at Uji-gawa River and Seta.
義仲は京都の防備を固めて鎌倉源氏軍との開戦に及んだが、法皇幽閉にはじまる一連の暴挙のため、木曾源氏軍の兵士は次々と敵前逃亡し、宇治川や瀬田での戦いに惨敗した。