The rules should be kill as many enemy soldiers (or civilians) as it takes to make them terrified of us and sue for peace.
We should not be in any conflict that doesn’t end in unconditional surrender by the enemy.
I am amazed that permission must be granted to return fire while on patrol and under fire. I am amazed that the wounded aren’t retrieved until after the shooting has stopped when our military aren’t permitted to shoot back. What? Waiting for the enemy to run out of ammo? Arm the helos.