Hisashi FUJIKI discussed in his book "Zohyotachi no Senjo (literally, "Battle fields of zohyo (common soldiers)" (The Asahi Shimbun Company) about "War to survive" by zohyo carried out in the field of heroic activities of sengoku daimyo.
藤木久志は著書『雑兵たちの戦場』（朝日新聞社）などで、戦国大名の英雄的な活躍の影で繰り広げられた雑兵たちの「食うための戦争」について論じている。