Related Rule
France
Practice Relating to Rule 142. Instruction in International Humanitarian Law within Armed Forces
Section B. Obligation of commanders to instruct the armed forces under their command
France’s LOAC Summary Note (1992) provides: “The commander must ensure that subordinates know their obligations [under IHL] and respect them. He is … responsible for their instruction.” 
France, Fiche de Synthèse sur les Règles Applicables dans les Conflits Armés, Note No. 432/DEF/EMA/OL.2/NP, Général de Corps d’Armée Voinot (pour l’Amiral Lanxade, Chef d’Etat-major des Armées), 1992, § 5.1.
France’s LOAC Teaching Note (2000) states: “The commander … must ensure that members of the armed forces know their rights, but also their obligations under the law of armed conflicts. As such, he is responsible for their instruction.” 
France, Fiche didactique relative au droit des conflits armés, Directive of the Ministry of Defence, 4 January 2000, annexed to the Directive No. 147 of the Ministry of Defence of 4 January 2000, p. 7.
France’s LOAC Manual (2001), referring to respect for IHL, provides: “The commander … must ensure that the members of the armed forces know their rights and discharge the corresponding obligations. As such, he is responsible for their instruction.” 
France, Manuel de droit des conflits armés, Ministère de la Défense, Direction des Affaires Juridiques, Sous-Direction du droit international humanitaire et du droit européen, Bureau du droit des conflits armés, 2001, p. 14.