Соответствующая норма
Benin
Practice Relating to Rule 65. Perfidy
Benin’s Military Manual (1995) states: “It is prohibited to use perfidy.” It adds: “Perfidy … consists of committing a hostile act under the cover of a legal protection.” 
Benin, Le Droit de la Guerre, III fascicules, Forces Armées du Bénin, Ministère de la Défense nationale, 1995, Fascicule III, p. 13.