Règle correspondante
Practice Relating to Rule 21. Target Selection
Burundi’s Regulations on International Humanitarian Law (2007) states: “When a choice is possible between several military objectives, the objective or tactic must be chosen which poses the least danger to civilians and civilian objects.” 
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. 10; see also pp. 23, 33, 63, 64 and 81.