Revolt against the Eternal Empire

In 3632 BBY, the Eternal Empire's rule of the galaxy was challenged by a figure known as the Outlander, who had been imprisoned in carbonite since before the Empire's conquest of both the Galactic Republic and the Sith Empire. Freed from the Eternal Empire's clutches by a small group of allies, the Outlander&mdash;accused of murdering the Immortal Emperor Valkorion by Valkorion's own son Arcann&mdash;went on the run from Arcann's forces, uncovering the legendary starship known as the Gravestone and gaining allies. After the Outlander's forces were able to cover the retreat of the populace of Asylum at Battle of Asylum with little losses, rogue elements from both the Republic and the Sith Empire joined the Outlander's cause, forming the Alliance on the planet Odessen and dedicating themselves to toppling Arcann's rule.

The Battle of Odesson concluded the revolution against the Eternal Empire in which the Outlander successfully defeated Arcann and managed to secure victory but Senya, unwilling to ignore her maternal instincts, escaped with Arcann in his personal shuttle to Wild Space. In the aftermath, Republic and Imperial forces arrived on Odesson to bolster the Alliance meanwhile at the same time Vaylin tok control of the Eternal Throne and allied herself with SCORPIO who wanted to exact revenge on "their enemies".