Règle correspondante
Benin
Practice Relating to Rule 145. Reprisals
Section B. Reasonable notice and measure of last resort
Benin’s Military Manual (1995) states that reprisals “may only be used if: … a prior warning is given”. 
Benin, Le Droit de la Guerre, III fascicules, Forces Armées du Bénin, Ministère de la Défense nationale, 1995, Fascicule III, p. 13.