The only honorable, desirable kind of fear that shouldn't be feared is the fear of harm on a loved one. It's the kind of fear that leads to self-sacrifice and the kind of fear where you would truly jump in front of a bus to save another.
It turns out that the men who ultimately, who unpretentiously value peace are willing to sacrifice their own peace of mind in order to render it. The question is, 'Who, between opposing forces, would do such a thing?' It seems only theoretical albeit true that men who accept an objective rather than subjective moral standard are, in a general sense, more capable of making such sacrifices for the sake of peace.
Those who live as though God sets the rules are not going by their own rules. That is the self-sacrifice, or selflessness, that peace more often than not requires. Those who insist on going by their own rules cannot make that sacrifice. They are the steady adherents of (global) conflict because they are forever fighting both themselves and others to do whatever they think that they want to do.