Our governing method is a singleton oligarchy. A set of, what you would term, AI act as singleton deciders of world decisions. The summation of these decisions are then decided by the same set to determine the most applicable outcome and that oligarchy makes the final course of action.
God and lucifer are metaphors for characteristics humanity caused by cognitive dissonance in living in a large and unknown universe with perceptions barely into 4 dimensions.
We had no holy war in the context that you speak of and what I assume you are creating allusions to. Wars of our past were fought through religious contexts, but no war existed after the creation of similar technologies of your brane's today.