Chau Sara
first world glassed by the protoss
Chau Sara was a Confederate colony in the Sara system, the smaller sister world of Mar Sara. It was one of the first terran worlds infested by the zerg and the first to be incinerated from orbit by the protoss, marking humanity's first contact with both alien species.
Chau Sara was a planet in the Sara system, the smaller and outlying counterpart of its sister world Mar Sara. Though it featured the wastelands typical of many terran colonies, it also held lush jungles and green rolling plains, and expensive sunwood was sold from it. A prosperous Terran Confederacy colony, Chau Sara became one of the first terran worlds attacked by the zerg and the first to be incinerated from orbit by the protoss, making it the site of humanity's first contact with both species. (StarCraft; StarCraft: Liberty's Crusade; StarCraft: Revelations; StarCraft: I, Mengsk)
Early history#
Chau Sara had been settled as a Confederate penal colony and was subject to occasional unrest, including a riot between 2478 and 2480, and many of its population of around 400,000 were still serving hard time in late 2499. These prisoners were frequently harvested for neural resocialization. An important Terran Confederacy colony, partly for its potential for mineral exploitation, Chau Sara served as the base of Alpha Squadron. (StarCraft: I, Mengsk; StarCraft: Revelations; StarCraft: Liberty's Crusade; StarCraft)
The zerg arrive#
The planet was discovered by the zerg and became one of the first terran worlds attacked. The Overmind subtly infested the soil with hive spores before the bulk of the Swarm openly invaded. Alpha Squadron had been recalled to Chau Sara to deal with a Sons of Korhal insurrection, the Colonial Magistrate Collins doubting the local militia could handle it, and during the operation the squadron encountered both a xenomorph outbreak and Cerberus Recon Squad, a Confederate black ops unit. Cerberus assisted in defeating the insurrectionists and then assumed command of the colony under the Colonial Crisis Act, overruling Collins and General Edmund Duke. Working with Alpha Squadron, Cerberus cleared the xenomorph hive clusters, and in the weeks that followed the Confederacy imposed a planet-wide lockdown restricting all travel and communication, hoping to contain knowledge of the zerg's existence behind a barrage of propaganda. (StarCraft)
Enter the protoss#
The terran successes had only delayed the inevitable. On December 8, the protoss fleet under the command of Executor Tassadar incinerated Chau Sara from orbit without warning, leaving a lifeless world. The attack was humanity's first contact with the protoss, and the deaths of so many humans in it became a lasting source of tension. (StarCraft; StarCraft: Liberty's Crusade)
Legacy#
Though sterilized, Chau Sara was not forgotten. The planet remained infamous in the terran cultural mindset more than a decade after it was glassed, as the place where first contact with the protoss was made. By 2511 some life had returned, but only in base moss and lichens. (StarCraft: Evolution)
Frequently asked questions
- What was Chau Sara in StarCraft?
- Chau Sara was a planet in the Sara system, the smaller and outlying counterpart of its sister world Mar Sara. A prosperous Terran Confederacy colony, it was settled as a penal colony and served as the base of Alpha Squadron.
- Why is Chau Sara important in StarCraft?
- Chau Sara became one of the first terran worlds attacked by the zerg and the first to be incinerated from orbit by the protoss, making it the site of humanity's first contact with both species.
- How did Chau Sara get glassed?
- On December 8, the protoss fleet under the command of Executor Tassadar incinerated Chau Sara from orbit without warning, leaving a lifeless world.
- What did the Confederacy do when the zerg arrived on Chau Sara?
- The Confederacy imposed a planet-wide lockdown restricting all travel and communication, hoping to contain knowledge of the zerg's existence behind a barrage of propaganda. Alpha Squadron and the Confederate black ops unit Cerberus Recon Squad cleared the xenomorph hive clusters during the crisis.
- What happened to Chau Sara after it was sterilized?
- More than a decade later the planet remained infamous among terrans as the place where first contact with the protoss was made. By 2511 some life had returned, but only in base moss and lichens.
Gallery

Images via StarCraft Wiki
Sources
- GameStarCraft, Blizzard Entertainment, 1998 (including the Precursor campaign and manual)
- BookStarCraft: Revelations, Chris Metzen and Samuel Moore, short story in Amazing Stories, 1999
- BookStarCraft: Liberty's Crusade, Jeff Grubb, 2001
- BookStarCraft: I, Mengsk, Graham McNeill, 2008
- BookStarCraft: Evolution, Timothy Zahn, 2016
Spotted a factual error or a primary source we missed? Email a correction. Every flagged claim gets reviewed.
Followed from this entry

Mar Sara: where Raynor's revolt began
A dusty Confederate mining world, among the first the zerg overran and the protoss then glassed. Jim Raynor raised his open revolt against Mengsk there.

Sara system
The Sara system was a star system in the Koprulu sector, unusual for holding two habitable planets, Mar Sara and Chau Sara. It was a Confederate frontier holding whose worlds became the first targets of the protoss purification that opened the Great War.
2499: the year the Great War began
2499 was the final year of peace in the Koprulu Sector and the first year of the Great War. It opened with quiet training rosters and covert cover ups, and it closed with two Confederate colonies burned from orbit, the zerg revealed to terran eyes, and rebellion spreading from Mar Sara to Antiga Prime.

Alpha Squadron
Alpha Squadron, nicknamed the Blood Hawks, was an elite Terran Confederate military formation under General Edmund Duke that defected to the Sons of Korhal during the Great War and went on to serve the Terran Dominion.

Edmund Duke
Edmund Duke was a Terran Confederacy general in command of Alpha Squadron and a member of one of the Old Families of Tarsonis. After his rescue by the Sons of Korhal he defected to Arcturus Mengsk, becoming the chief military tactician of the Terran Dominion until his death at Sarah Kerrigan's hands.

Overmind: the zerg mind that betrayed Amon
Amon built the Overmind on Zerus to drive the zerg at the protoss. It worked in secret against him instead, and died above Aiur to Tassadar's sacrifice.
Mentioned in36 entries
2499: the year the Great War began
2499 was the final year of peace in the Koprulu Sector and the first year of the Great War. It opened with quiet training rosters and covert cover ups, and it closed with two Confederate colonies burned from orbit, the zerg revealed to terran eyes, and rebellion spreading from Mar Sara to Antiga Prime.
2502: the year of quiet atrocities
2502 fell in the uneasy years between the Brood War and the Second Great War. The Terran Dominion hid a colonial massacre behind parade broadcasts, Emperor Mengsk buried the mother of his heir, a squad of outlaw commandos was sent to kill Jim Raynor, and secret programs built on stolen ghosts and captive protoss advanced in the dark.
Alpha Squadron
Alpha Squadron, nicknamed the Blood Hawks, was an elite Terran Confederate military formation under General Edmund Duke that defected to the Sons of Korhal during the Great War and went on to serve the Terran Dominion.
Barracks: mustering hall of terran infantry
The barracks housed and trained all terran infantry, a mobile structure that could cross great distances to reach new hot zones. Pitched by the Dominion as a safe and comfortable staging point, it was in truth a sterile warren of bunks, deployment ramps, and resocialization tanks that unnerved many of the recruits who lived inside it.
Cole Hickson
Cole Hickson was a terran outlaw and soldier scarred on the left side of his face, a sniper and frequent leader of the War Pigs. He once saved Jim Raynor's sanity in a Kel-Morian prison camp, then years later was resocialized by Tamsen Cauley into an unwitting assassin sent against Raynor.
Conclave: the elders who exiled the Nerazim
A small body of Judicator elders ruled the Protoss Empire from Aiur. They banished the Dark Templar, enslaved the Purifiers and tried Tassadar.
Confederate Armed Forces: military arm of the Terran Confederacy
The Confederate Armed Forces was the military of the Terran Confederacy, headquartered on Tarsonis and organized into squadrons of conscripts and resocialized criminals. It fought the Kel-Morian Combine in the Guild Wars, razed Korhal with nuclear weapons, and collapsed when the zerg overran Tarsonis.
Confederate Marine Corps: infantry backbone of the Terran Confederacy
The Confederate Marine Corps was the best known military arm of the Terran Confederacy, an infantry service older than the Confederacy itself that filled its ranks with resocialized criminals and reluctant volunteers. It fought the Kel-Morian Combine through the Guild Wars and was destroyed alongside its government when the zerg overran Tarsonis.
Edmund Duke
Edmund Duke was a Terran Confederacy general in command of Alpha Squadron and a member of one of the Old Families of Tarsonis. After his rescue by the Sons of Korhal he defected to Arcturus Mengsk, becoming the chief military tactician of the Terran Dominion until his death at Sarah Kerrigan's hands.
Every Zerg Brood, From the Garm Brood to Kerrigan's Swarm
Every named zerg brood in StarCraft, from the Overmind's six great broods of the Great War to the broodmothers who served the Queen of Blades. Each entry covers who led it, what it was good at, where it fought and how it ended.
Fall of Aiur
The Fall of Aiur was the zerg invasion of the protoss homeworld during the Great War, fought at the same time as the Protoss Civil War. Tassadar destroyed the Overmind, but the Swarm had already claimed too much of Aiur, killing seventy percent of the protoss and forcing the survivors to abandon their world.
Ghost
Ghosts were the feared psionic covert operatives of the terran sector, drawn from psychically gifted individuals, trained from infancy as assassins, and used to guide nuclear strikes for the Confederacy and the Dominion.
+ 24 more
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