Red Dragonborn
Red dragons are the most famous and well known of the dragons because of their cunning and cruelty. Red dragonborn share similar characteristics. They are the largest opposition force to Aetherhold, living in the volcanic region of Drakhaven and have the largest amount of territory. They are territorial, often turning away or even executing outsiders, and generally live a tougher life than the metallics. They see the metallics as weak, which frustrates them as the metallics have a larger number than them so they cannot overpower them despite having the fiercest individual warriors. They live under Aetherhold but do retain some diplomacy with the outside world that they use for their own purposes. They are led by Vorgar Flameforged - a very strong warrior that sits on the red throne of Khyronia - the red dragonborn nation. There would inevitably be splinter groups within the reds but he is the undisputed champion.