Is humanity a principle of the law of war that addresses the immunity of peaceful populations and civilian objects from attack?

Yes, humanity is a principle of the law of war that emphasizes the protection of peaceful populations and civilian objects from attack. This principle is rooted in international humanitarian law, specifically the Geneva Conventions, which seek to limit the effects of armed conflict by safeguarding those who are not participating in hostilities. It mandates that parties to a conflict must distinguish between combatants and civilians, ensuring that civilians are spared from the ravages of war whenever possible.