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Burundi
Practice Relating to Rule 57. Ruses of War
Burundi’s Regulations on International Humanitarian Law (2007) states that “ruses of war (camouflage, deception, feints, shams, simulated demonstrations and operations, disinformation, false information [or] technical ruses) are permitted.” 
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. 16; see also Part I bis, pp. 32, 41 and 94.
The Regulations further states:
In order to be compatible with the law of war, camouflage must respect the difference between ruses (permitted) and perfidy (prohibited).
A “ruse of war” or a “stratagem” is an act not amounting to perfidy but which aims at:
- misleading the enemy;
- making the enemy act imprudently … 
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. 94.