相关规则
Burundi
Practice relating to Rule 66. Non-Hostile Contacts between the Parties to the Conflict
Section B. Use of the white flag of truce
Burundi’s Regulations on International Humanitarian Law (2007) states that “the white flag of truce … is utilized to negotiate”. 
Burundi, Règlement n° 98 sur le droit international humanitaire, Ministère de la Défense Nationale et des Anciens Combattants, Projet “Moralisation” (BDI/B-05), August 2007, Part I bis, p. 22; see also Part I bis, p. 38 and Part I, p. 13.
The Regulations also states that “the white flag of truce … [is used] by parlementaires or envoys who head towards the adversary in order to announce their intention to negotiate”. 
Burundi, Règlement n° 98 sur le droit international humanitaire, Ministère de la Défense Nationale et des Anciens Combattants, Projet “Moralisation” (BDI/B-05), August 2007, Part I bis, p. 7; see also Part I bis, p. 60.