Factions determine your character's allegiance and starting area in Elder Scrolls Online. Depending on your choice, you will select a Race for your character and set forth within a specific zone. You will be able to explore and complete quests across all factions regardless of your initial choice, but your PvP allegiance will never change.
The trumpets of war have sounded, calling warriors of all walks to the field of battle. The Empire has all but crumbled and from the ashes of that once golden age have emerged three great alliances. Three mighty generals have marshalled about them the fiercest armies our lands have yet seen, and now they descend upon Cyrodil, vying for control over the Imperial City and the Throne of Tamriel."
The Alliance War has arrived and it's time to pick a side.
Factions of Elder Scrolls Online