Соответствующая норма
South Africa
Practice Relating to Rule 14. Proportionality in Attack
Section B. Determination of the anticipated military advantage
South Africa’s LOAC Teaching Manual (2008) states:
- The test here is whether the incidental or collateral damage caused by the force is not excessive in comparison with the military utility of the force. In other words, the standard of measurement is the contribution to the military purpose of an attack or operations considered as a whole, as compared with the other consequences of the action, such as the effect on civilians or civilian objects. 
South Africa, Advanced Law of Armed Conflict Teaching Manual, School of Military Justice, 1 April 2008, as amended to 25 October 2013, Learning Unit 1, p. 45.