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Peru
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
Peru’s IHL and Human Rights Manual (2010) states: “The commander is responsible for the appropriate instruction of international humanitarian law.” 
Peru, Manual de Derecho Internacional Humanitario y Derechos Humanos para las Fuerzas Armadas, Resolución Ministerial No. 049-2010/DE/VPD, Lima, 21 May 2010, § 20, p. 419; see also § 25(b)(1)(a), p. 227.
The manual also states: “The commander must personally make sure that his subordinates know the obligations stemming from international humanitarian law”. 
Peru, Manual de Derecho Internacional Humanitario y Derechos Humanos para las Fuerzas Armadas, Resolución Ministerial No. 049-2010/DE/VPD, Lima, 21 May 2010, § 19, p. 419; see also § 25(b)(1)(a), p. 227.