Norma relacionada
Practice Relating to Rule 7. The Principle of Distinction between Civilian Objects and Military Objectives
Section B. Attacks against military objectives
It is reported that, during the War in the South Atlantic, both parties directed their hostile acts only against military objectives. 
Carlos Horacio Cerdá, El respeto del Derecho International Humanitario durante el Dessarollo del Conflicto Armado del Atlántico Sud, Report on the Practice of Argentina, 1997, Chapter 1.3.