 how do you fight? And you do have a three-tiered system that guides you in how you use combat force. And that is military necessity. The target has to be a military target. Number two, unnecessary suffering. You want to reduce collateral damage. And then number three is proportionality. In other words, if I see that the enemy is in a particular building and they're surrounded by a lot of civilians, I'm not going to use B-52s to level the entire town. I'm going to target the building. So there is proportionality.