Norma relacionada
Practice Relating to Rule 20. Advance Warning
Burundi’s Regulations on International Humanitarian Law (2007) states: “If possible, in cases [when] an attack may affect the civilian population, an effective advance warning must be given.” 
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. 63; see also Part I bis, pp. 23, 33, 81, 87 and 92.