Règle correspondante
Practice Relating to Rule 7. The Principle of Distinction between Civilian Objects and Military Objectives
Section B. Attacks against military objectives
The Report on the Practice of Angola asserts that military objectives were the only targets of attack during the war of independence, but that the civil war that followed independence was characterized by confusion between military objectives and civilian objects. The report provides a list of examples of alleged attacks against civilian objects. 
Report on the Practice of Angola, 1998, Chapter 1.3.