Answer:
The title of Blessed and God's servant
It is definitely D because A and B have to do with weapons and C has to do with a horse not health
It could be both but if the context is for building civilizations it would be rivers but resources for armies
Countries that form alliances do so to A. "Ensure the prosperity of each nation". Most alliances are military alliance, in which countries vow not to attack one another and to defend the other if attacked by someone else.