Predecessor

The Predecessors were a technically advanced race from beyond Our galaxy. They operated from the planet Predecon which notoriously moved beyond known galaxies multiple times.

Creation
The Predecessor races were created as part of the Yuuzhan Vong Galaxy, expanding from Predecon to closely located planets like Dag-Ur and Surillia. Many planets fell to the Predecessors and became their colony world, sharing in the Predecessor wealth and resources, most colonies became richer than they ever been.

First Predecessor-Yuuzhan Vong War
Another dominant race aside from the Predecessors were created known as the, which would expand heavily by use of force and slavery. The Vong would eventually challenge the Predecessors with a greater force, and cause them to retreat along with their planet out of the galaxy, leaving their colonies at harm by the Vong.

Exile
The Predecessor race went into self-exile, and would follow their leader, Crank Salueís, rather reluctant. Crank would be removed from the position of army commander and limited in concern of the Predecessor Navy. Crank would eventually lead his species back to the Vong galaxy and silently continued to reclaim former Predecessor worlds, many of which would join with capable ease.

Second Predecessor-Yuuzhan Vong War
The Predecessor Empire would eventually enter combat again with the, decades later with aid of the. The Predecessors would however be superior in their technology and eventually caused the Vong galaxy's core to implode, destroying the entire galaxy with it, with the Chiss and the Predecessors only barely escaping to the known galaxy.

Chiss Ascendancy-Galactic Alliance War
The Predecessor Empire would join the in their war against the  allying the   during the Battle of Mon Calamari and eventually attacking the mining facilities on, releasing many former prisoners of the , which would be owned by the Galactic Alliance.