Atlas

Born from the ashes of the empire, Atlas is the most technologically advanced and militarily the strongest nation. Its relationship with the rest of the world can be described as rocky as best. Atlas is ideologically an absolutist monarch state, with a rigid ruling class of nobles and kings, and a lower class of peasants and plebiscites. It's by far the most traditional monarchic kingdom in all of Marathon, and attests to the “purity” of a royal bloodline. Absurd amounts of money are used to construct palaces and build armies, and almost none of it goes to the peasantry. They also had state-funded expeditions into the Frontier and established the “lighthouse” system that spans nearly half of the dark west, so if a particularly dangerous Grimm is approaching the defense line, they (and the Hunter societies) can know within minutes.