Military: War
After the death of Zemos, many in the Savage Isles were rallied to the war against the Holy Order of Druids. Meanwhile, the druids were quickly losing control, and as such the battle progressed quickly against them. In the end, a border was established which gave a considerable amount of forest under the world trees protection to the residents of the Savage Isles.
Although the border was negotiated politically, the war still smoulders beneath the surface and it is heavily fortified by both sides with a demilitarized zone in between the borders. This area is often used by loggers to cut down trees for construction as the world trees keep growing the forest there.