Norma relacionada
Practice Relating to Rule 63. Use of Flags or Military Emblems, Insignia or Uniforms of Neutral or Other States Not Party to the Conflict
Indonesia’s Military Manual (1982) states: “It is … prohibited to use … the military uniforms of neutral States or other States which are not parties to the conflict.” 
Indonesia, The Basics of International Humanitarian Law, Legal Division of the Indonesian Armed Forces, 1982, § 104.