Though Thingol once unified all of Beleriand, he is now extremely selective about who he allows within the boundaries of Doriath, closing himself and his people off from the rest of Middle-earth. Meanwhile, the reunion of the Noldor is short-lived. Many of Fëanor’s sons are too volatile to live peacefully with the rest of their people, and Maedhros separates them for everyone’s good. On their own, they forge new alliances and maintain their connection to the other Noldor.