Furthermore, there is a theory that the law penalizing defenses is the origin of the principle of Kenka Ryoseibai (in a quarrel, both parties are to blame), which was stipulated in bunkokuho (the law which individual Japanese territorial lords in the Sengoku period enforced in their own domain).
なお、防戦に対する処罰規定は戦国大名の分国法などにおける喧嘩両成敗の元となったとする説もある。