"Attack. Tear. Rend. Bite. Claw. Burrow. Ambush. Slaughter. Destroy. Consume. Assimilate. Evolve."
- A zerg thoughtstream
The Zerg Swarm are a terrifying and ruthless amalgamation of biologically advanced, arthropodal aliens. Dedicated to the pursuit of genetic perfection, the zerg relentlessly hunt down and assimilate advanced species across the galaxy, incorporating useful genetic code into their own. Alongside the protoss and terrans, the zerg stand as one of the three dominant species of the Milky Way and are universally feared, hated and hunted as such. The Swarm in itself makes up a third of the power of the Koprulu Sector. They currently serve as a part of the Coalition of Independent States.
History
Origins and War with the Protoss
A zerg Hydralisk.
Before the rise of the Human Empire, along with their creations, it was said that the Zerg had long waged war with the Protoss Empire in an effort to assimulate all life. They were also known to be created by the Xel'naga, the ancient alien race that built an empire that preceded th race of humankind.
Conflict with the Edanians
The Zerg-Edenite War occured when the Swarm reached to the planet of Eden, sparking a war within sector Aurelia that resulted with the death of thirty million souls. The capital city of Delithia became a burning battleground, but eventually turned the tide of the war for Eden's favor. As a result, the Edanians launched a counter-assault upon Zerg-occupied worlds while allying themselves with the Protoss Empire until the Swarm finally gave up and retreated back to thr planet Char. Although defeated by the Protoss and Edanians, the Zerg threat remained and waited until all of their forces were rebuilt by the time humanity occured in the Koprulu sector of the Demi'ini universe.