Related Rule
Peru
Practice Relating to Rule 108. Mercenaries
Section A. Definition of mercenaries
Peru’s IHL Manual (2004) defines the term “mercenary” as: “Any person who voluntarily enrols in the combatant armed forces of a belligerent State of which he is not a national, motivated by the desire for private gain.” 
Peru, Manual de Derecho Internacional Humanitario para las Fuerzas Armadas, Resolución Ministerial Nº 1394-2004-DE/CCFFAA/CDIH-FFAA, Lima, 1 December 2004, Annex 9, Glossary of Terms.
Peru’s IHL and Human Rights Manual (2010) defines “mercenary” in its Glossary of Terms as: “Any person who voluntarily enrols in the combatant armed forces of a belligerent State of which he is not a national, motivated by the desire for private gain.” 
Peru, Manual de Derecho Internacional Humanitario y Derechos Humanos para las Fuerzas Armadas, Resolución Ministerial No. 049-2010/DE/VPD, Lima, 21 May 2010, p. 409.