Switzerland
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
Switzerland’s Basic Military Manual (1987) prohibits perfidy. Thus, “it is notably forbidden … to abuse a protected status by using signs, emblems or uniforms … of nations not involved in the conflict”.
Switzerland’s Regulation on Legal Bases for Conduct during an Engagement (2005) states:
15.2 Prohibited methods of warfare
…
224 Wearing enemy uniforms or feigning protected status by using the insignia, emblems or uniforms of the United Nations or of neutral States or States that are not party to the conflict is prohibited.