The Law of War is the legal arena where these questions are grappled with: https://en.wikipedia.org/wiki/Law_of_war https://en.wikipedia.org/wiki/Law_of_war Wh

The Law of War is the legal arena where these questions are grappled with: https://en.wikipedia.org/wiki/Law_of_war https://en.wikipedia.org/wiki/Law_of_war While this system is by no means perfect, remember that the goal of the rule of law is to provide another means of settling disputes other than violence, or limiting or tempering violence when it must be used.