Соответствующая норма
Practice Relating to Rule 62. Improper Use of Flags or Military Emblems, Insignia or Uniforms of the Adversary
Nicaragua’s Military Penal Code (1996) punishes any soldier who, in time of war and in an area of military operations, “unlawfully displays … enemy flags or emblems”. 
Nicaragua, Military Penal Code, 1996, Article 50(1).