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Peru
Practice Relating to Rule 3. Definition of Combatants
Peru’s IHL Manual (2004) defines “combatants” as “members of the armed forces of a party to the conflict”. 
Peru, Manual de Derecho Internacional Humanitario para las Fuerzas Armadas, Resolución Ministerial Nº 1394-2004-DE/CCFFAA/CDIH-FFAA, Lima, 1 December 2004, Chapter 9, Glossary of Terms.
The manual further states: “Captured combatants (whether they surrender or not) are prisoners of war and cannot be attacked from the time of capture. Prisoner-of-war status applies from the time of capture.” 
Peru, Manual de Derecho Internacional Humanitario para las Fuerzas Armadas, Resolución Ministerial Nº 1394-2004-DE/CCFFAA/CDIH-FFAA, Lima, 1 December 2004, § 109.a; see also § 33.a.(2).
Peru’s IHL and Human Rights Manual (2010) states: “Members of the armed forces of a Party to the conflict are combatants.” 
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. 400.
The manual further states: “The members of the armed forces (who are not medical personnel or religious personnel) are combatants.” 
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. 418.