In the area of combat operations the principle of proportionality remains a largely subjective standard, based on a balancing between the expectation and anticipation of military gain and the actual loss of civilian life or destruction of civilian objects.
在作战区，相称原则在很大程度上仍然是一条主观标准，适用时需要权衡预期的军事利益和平民生命的实际损失或平民物体的毁坏。