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Peru
Practice Relating to Rule 65. Perfidy
Section J. Simulation of protected status by using flags or military emblems, insignia or uniforms of neutral or other States not party to the conflict
Peru’s IHL Manual (2004) states that “the feigning of protected status by the use of signs, emblems or uniforms of … neutral States” is an example of perfidy. 
Peru, Manual de Derecho Internacional Humanitario para las Fuerzas Armadas, Resolución Ministerial Nº 1394-2004-DE/CCFFAA/CDIH-FFAA, Lima, 1 December 2004, § 27.e.(9).(e).
In the context of armed conflict at sea, the manual states: “Perfidious acts include the launching of an attack while feigning: … neutral … status.” 
Peru, Manual de Derecho Internacional Humanitario para las Fuerzas Armadas, Resolución Ministerial Nº 1394-2004-DE/CCFFAA/CDIH-FFAA, Lima, 1 December 2004, § 135.c.(1).
The manual also prohibits the following acts as being perfidious: “Carrying out hostile operations of any kind, even aerial reconnaissance, under cover of aircraft registration numbers or markings belonging to neutral countries”. 
Peru, Manual de Derecho Internacional Humanitario para las Fuerzas Armadas, Resolución Ministerial Nº 1394-2004-DE/CCFFAA/CDIH-FFAA, Lima, 1 December 2004, § 165.b.(2).
Peru’s IHL and Human Rights Manual (2010) states that “the feigning of protected status by the use of signs, emblems or uniforms of … neutral States” is an example of perfidy. 
Peru, Manual de Derecho Internacional Humanitario y Derechos Humanos para las Fuerzas Armadas, Resolución Ministerial No. 049-2010/DE/VPD, Lima, 21 May 2010, § 28(e)(2)(e), p. 239.
In the context of armed conflict at sea, the manual states: “Perfidious acts include the launching of an attack while feigning: … neutral … status.” 
Peru, Manual de Derecho Internacional Humanitario y Derechos Humanos para las Fuerzas Armadas, Resolución Ministerial No. 049-2010/DE/VPD, Lima, 21 May 2010, § 126(c)(1), p. 319.
The manual also prohibits the following acts as being perfidious: “Carrying out hostile operations of any kind, even aerial reconnaissance, under cover of aircraft registration numbers or markings belonging to neutral countries”. 
Peru, Manual de Derecho Internacional Humanitario y Derechos Humanos para las Fuerzas Armadas, Resolución Ministerial No. 049-2010/DE/VPD, Lima, 21 May 2010, § 156(b)(2), p. 339.