I think the Pashtuns we fired warning shots at my disagree with you. When they got to close to us and didn't stop despite loud verbal warnings we fired warning shots, they knew that meant stay away or get shot. Life's dangerous, it's all fine and dandy to pretend to quote the book, but its not that simple and when it's down a second before you have to shoot someone because they might be a walking bomb and you instead fire a warning shot, you just saved two lives. Say what you want about what the text book says, a warning shot isn't lethal.
Remember that the person that I replied to replied to a post that said:
"Firing a gun constitutes lethal force. Even brandishing a gun might constitute lethal force. Lethal force is only acceptable to prevent death or grievous bodily harm. ... If you shoot in self-defense, you must shoot to stop a threat, and shooting must be a proportionate response to that threat."
Legally and practically (if you're an armed member of a foreign army, you're far more likely to encounter armed opposition than some random guy in Nowheresville, UT), things are very different in a war zone. This is why threats of deadly force are often acceptable in a war zone, but unacceptable in times of peace.
