Minamoto no Yoshinaka, commander of a contingent of warriors from
Shinano Province, invaded Taira lands in Shinano,
Echigo,
Etchū,
Kaga and
Echizen. The war was put on hold in 1181 on account of two years of famine. As conditions improved in 1183, the Taira sought retribution against Yoshinaka.
Taira no Koremori, son of
Taira no Shigemori and grandson of the late
Taira no Kiyomori, took charge of this operation, backed by Taira Michimori,
Tadanori, Taira no Tomonori, Taira no Tsunemasa and Taira no Kiyofusa. Their forces severely reduced by battle and famine, the Taira sought to recruit warriors from the surrounding lands and did so at the risk of further famine, since many of these warriors were farmers leaving their land. The Taira army departed from Kyoto on 10 May 1183.
Minamoto no Yoritomo, Yoshinaka's cousin, moved to fight him for dominance of the clan in March 1183, but was convinced to stand down and withdraw by Yoshinaka, who argued that they should be united against the Taira. To ensure his intentions, Yoshinaka also sent his son to Kamakura as a hostage. Shortly afterwards, Yoshinaka received news of Koremori's army, and moved to engage him, along with his uncle
Minamoto no Yukiie,
Tomoe Gozen, and his
shitennō,
Imai Kanehira, Higuchi Kanemitsu, Tate Chikatada and Nenoi Yukichika. ==Battle==