Brood War

The Brood War, also known as the Zerg Civil War, was a series of conflicts between the Renegade Zerg, led by an Insane Worm, and the Loyalist Swarm, led by a Creepy Ex-Ginger Freak with skeleton wings.

The Brood War began soon after the death of the Overmind. His cunning plan involved his death anyway, so the Freak could take over the Swarm and free them from the Dark Voice's control. Some Cerebrates (Basically Giant Worms that act as Zerg Lieutenants) thought that the Zerg would die without an Overmind, and so some decided to merge together to create a new one.

Creepy Ex-Ginger Freak, unaware of the Overmind's cunning plan but determined to keep control of the Zerg, decided this was a silly idea, and declared the Worms traitors. War soon followed.

The Zerg Queens and their Hives sided with Gingey, and the Cerebrates and their Hives sided with Daggoth, the Master Worm. All across Zerg Worlds, Hives began assaulting one another and demolishing themselves. The conflict engulfed many worlds and even on Aiur, in the middle of the attack, the invading army began obliterating one another.

Eventually Gingey, using apparently very subtle mental subversion, convinced a Protoss Matriarch and her underlings to help kill the Giant Worm Gang. The Protoss succeeded in their quest and this greatly improved the Loyalist's standing in the War.

However, some magical device was set off during a failed Renegade Human invasion of Char which weakened Gingey's control over the Zerg, causing many to rebel and break off from the Loyalists. Gingey personally dealt with this, slaughtering many Hives until they surrendered to her control. Eventually, many of the Renegades joined the Loyalists and using this numbers advantage, the rebels were finally put down, securing victory for Gingey and allowing the Zerg to concentrate on the other eight wars they were involved in.