The Days of High Adventure
The Savage Lands are an untamed realm north of the Nentir Vale populated by Orcs, Dragons, and other dangers. Much of it is unsuitable for agriculture, and raw materials are scarce.
Orcs fight unending wars with each other over territory, resources and prestige; Dragons pile up hoards of treasure and demand tribute and worship from lesser inhabitants of their lands, far away from the civilizaed races of the world.
Orcs are periodically forced to leave the lands when displaced by other Orc tribes, dragons, or lack of resources; during these times they raid the anent Vale for supplies, treasure, and slaves to take back to the Savage Lands.