At the beginning of the Sengoku Period, battles which were usually conducted in off-season for farmers were an opportunity for peasant soldiers for short-term employment with ikkyoryotoku (killing two birds with one stone) where they could obtain wages to be paid and army provisions including a combat ration, in other words, cash income and a decrease in payment for food.
戦国時代初期の頃は通常農閑期に行われる戦は農民兵たちにとって支給される賃金と陣中食はじめ兵糧、即ち現金収入がある出稼ぎと食い扶持減らしの出来る一挙両得の短期雇用の場であった。