Currently occupied by Nuvonia, Kastria was once a shining beacon of freedom and diversity. Kastria is a diverse country of Humans and Kin working alongside each other as equals. Of course, its history had periods of bad leaders and internal strife, but they rarely lasted long and affirmed its population's respect for community and cooperation.
Keeping Kastria from falling to extended dark times was the Order of Dawn, an organization of skilled Knights, Mages, Librarians, and other powerful people sworn to an extensive moral ethos known as the Oath of Dawn. The Kastrian army itself is volunteer and fairly small, but when bolstered by the Order their record in warfare is unrivalled.
The full story of the nullification of the Order and the swift and successful assault by Nuvonia has not been told, but a small number of The Order turned traitor, leading to the destruction of the rest. Right now, Arkyn believes himself the only surviving member. The the Order's Artifact Ax “Heartbreaker” has chosen him as its wielder suggests this may actually be true.