Соответствующая норма
Practice Relating to Rule 42. Works and Installations Containing Dangerous Forces
Section A. Attacks against works and installations containing dangerous forces and against military objectives located in their vicinity
According to the Report on the Practice of Angola, during the civil war in Angola both governmental forces and the União Nacional para Independência Total de Angola (UNITA) violated Article 15 of the 1977 Additional Protocol II by treating dams as military targets. 
Report on the Practice of Angola, 1998, Chapter 1.9.