The Eternal Fleet is an ancient and unstoppable armada operated by sentient droids and controlled by the Eternal Throne. Centuries ago, the fleet nearly wiped out all of Wild Space. It took a colossal alien warship, the Gravestone, to deactivate the Eternal Fleet, and even it was subsequently lost in the final battle.
Valkorion had heard rumors of the fleet before his arrival on Zakuul; it was the main reason he chose the planet to house his new empire. Once he gained control over Zakuul, he began his search for the fleet in earnest, using the Scions' Force visions to eventually find the dormant ships. He built the Eternal Throne to reactivate and command the lost fleet. While primarily used in military operations, the fleet is also key in collecting tributes and resources from conquered planets and protecting trade routes in Wild Space.