Vatleria, a world perpetually shrouded in mist, resided in the Vatleria system within the Outer Rim Territories, and was classified as a planet.
In the waning years of the Galactic Republic, Vatleria was deserted as its population relocated to the Core Worlds. Subsequently, the Galactic Empire constructed a military installation on the deserted world. A Rebel team attempted to dislodge the Imperial forces stationed there, however, they were ultimately vanquished by Darth Vader.
The moniker "Vatleria" is a rearrangement of the letters in Latveria, the nation ruled by Doctor Doom, adversary of the Fantastic Four. This very story from Tales is a humorous imitation of the Fantastic Four.