I believe we're getting sidetracked
To clarify, when I said agree with physical fighting, I meant a fist-fight between two friends who both agree to it and who both wouldn't seriously harm the other. Everybody needs a little risk and a little suffering in their lives. And this should certainly NOT be a way to resolve conflicts.
But that's far from the point of the thread.
Thanks to everyone who has contributed so far, by the way. I must say that I have begun to question by prior belief. I am still debating with myself whether war can be justified.
If war is justified because the enemy has made morally wrong actions, how can we as humans determine whether or not these enemies deserve death?
If one defines morality as basic guidelines that progress the human species by doing what is logically best for all, and a group of people break that morality, do they deserve the severest of all punishments?
Wouldn't our morals dictate that nobody deserves death, because beliefs can be changed and it would be better to have converted our enemies than kill them?