Related Rule
Germany
Practice Relating to Rule 65. Perfidy
Section C. Simulation of being disabled by injuries or sickness
Under Germany’s Soldiers’ Manual (1991), “the feigning of being incapacitated for combat” constitutes a perfidious act. 
Germany, Taschenkarte, Humanitäres Völkerrecht in bewaffneten Konflikten – Grundsätze, Bearbeitet nach ZDv 15/2, Humanitäres Völkerrecht in bewaffneten Konflikten – Handbuch, Zentrum Innere Führung, June 1991, p. 2.
Germany’s Soldiers’ Manual (2006) states that perfidious acts are those “by which the adversary is induced to believe that there is a situation affording protection under public international law, so that he may be attacked by surprise, e.g. the feigning of an incapacitation”. 
Germany, Druckschrift Einsatz Nr. 03, Humanitäres Völkerrecht in bewaffneten Konflikten –Grundsätze, Erarbeitet nach ZDv 15/2, Humanitäres Völkerrecht in bewaffneten Konflikten – Handbuch, DSK SF009320187, Bundesministerium der Verteidigung, R II 3, August 2006, p. 2.