On July 29, 1156, a council of war was held at which Tametomo proposed a night attack, saying "I have fought many battles in Kyushu, and I believe there is no better strategy than the night attack."
7月11日(旧暦)（1156年7月29日）、軍議が開かれ、為朝は「九州で多くの合戦をしましたが夜討に勝るものはありません。