I'm sorry. I can't understand, it's wrong when good or just clever men leave this life earlier, than it would be, by an accident, by a stupid mistake.
About wars.. Any human being is an animal. So, we've got all the animal instincts but our feelings are deeper and more various. I really believe that no one can make another fight and kill if he doesn't want to. War is just politics. Murder is culmination of human rage and anger. But in any case it's considered.