Silentium–Abominor War

"The ancient texts are unclear. It appears we were invaded by a race that was more technological than animate. We called on the gods for protection, and they came to our aid, providing us with the knowledge we needed to convert our living resources to weapons. We defeated the threat, and, empowered by our victory, we gradually became conquerors of other species and civilizations"

- Harrar

The Silentium-Abominor War was a conflict fought in the Yuuzhan Vong home galaxy between two droid species the Silentium and Abominor, at an unknown period presumably long before 0 BBY.

Eons ago, a species of star-shaped organics created the Silentium to resemble their form, in much the same way that humanoid sentients created bipedal droids. Though the organics were wiped out by a radiation storm from a nearby supernova, their droid creations lived on. These droids continued to reproduce and improve themselves, and developed a culture based on the prime numbers of five, seven, and eleven.

Many of them took on the form of geometric shapes, with the circle being the "holiest" of shapes. Thousands of the wisest members of the droid race created powerful fifty-kilometer spheroid bodies. Two influential members of this giant variety included The One and The Other, and the others were collectively called The Rest. However, this culture of order and symmetry was soon challenged by the chaotic Abominor, self-constructing droids with a lust for power.

The two droid species fought a galactic war, ignoring their galaxy's native organic species particularly the Yuuzhan Vong, until the organics fought back and forced both droid powers to flee their galaxy into the Unknown Regions of another Galaxy. This war that devastated the Yuuzhan Vong home galaxy particularly their homeworld of Yuuzhan'tar and triggered the Vong's hatred of machinery and xenophobia towards other sentient lifeforms. Following this war, the Yuuzhan Vong went on a crusade to cleanse their galaxy of all forms of mechanical technology. They conquered much of their galaxy and either exterminated or enslaved conquered species. Among those species they conquered were the reptoid Chazrach, which became slave soldiers for the Yuuzhan Vong. However, the various Yuuzhan Vong Domains disagreed and fought among themselves in the more devastating Cremlevian War.