Battle of Sunomata-gawa

The Battle of Sunomata-gawa (墨俣川の戦い, Sunomata-gawa no Tatakai) took place in Japan on 6 June 1181 (or by the Japanese calendar, Jishō-5 year, 4-month, 25-day), in the present-day town of Sunomata, Gifu Prefecture. The battle started when Minamoto no Yukiie attempted a sneak attack across the Sunomata River against his enemies during the night.