In those days, warriors in Koshu were said to be strong and they had a victory in a minor battle the day before the final battle of Nagashino, which raised their morale.
当時、甲州兵は強兵といわれ、また長篠決戦前日の小規模な戦闘で勝利していたこともあり、武田軍の士気は旺盛であった。