How many of you people posting on here about people not being able to handle war would come through a situation where your two best friends took an IED to their vehicle and were blown up, and your vehicle was also in a blast, but even though you came through unscathed, you saw the bodies of your friends blown apart in several pieces.
I challenge ANY of you to come back from an experience like that and not be affected.
Have it happen to you more than a couple of times, and chances are you would have a serious case of PTSD.
Besides..............humanity wasn't built for war because of all the atrocities that happen on the battle field. We do much better when we cooperate with each other.