War is not a sports event.
The human species proudly differentiates itself by its consciousness, values, morality, choices. How then explain brutality, and war?
Creating humanitarian principles to guide behavior towards each other as part of the internationally accepted Rules of War has a starting place that accepts war as a given. That false start leads to destruction of persons and property and worst, of kindness. War is an insufficient justification for managing an overload of ambition.