Siege of Darguun - Part I - The long march to war
The Eldeen Reaches declared its independence from Aundair during the Last War. The Eldeen Reaches, although claimed by Aundair, had always been sparsely populated. During the Last War, when Aundair was pressed by Breland, Thrane and Karnaath, it pulled the quasi-totality of its fighting force from the East. The druids of the Eldeen Reaches took advantage of this to declare their independence and make the remaining citizens of Aundair an offer : either submit to authority (such as it was) of the druids and no longer pay taxes or leave. The overwhelming majority opted to stay.
The loss of the Eldeen Reaches was not well seen in Aundair. Although its existence was recognized by the Treaty of Thronehold, many citizens of Aundair would gladly reclaim the wayward province given the opportunity.
The Eldeen Reaches is governed by the Gatekeeper Druids, who tend to adopt a light touch when it comes to governance.