Warriors in the pioneer period were individual mounted shooting as the major tactics, and after the late Kamakura era, a concentration of spearmen using common soldiers including Ashigaru (common soldiers) became the major tactic.
草創期の武士は個人騎射を主戦術とし、鎌倉末期からは足軽など雑兵による集団槍兵が主戦術となったこと。