Sa'cea is among the largest and most densely populated of the sept worlds, its surface given over almost entirely to the manufactories, foundries, and orbital shipyards that keep the T'au war machine equipped for a war on multiple frontiers. The sept's Earth caste engineers are renowned for their productivity, turning out battlesuits and gunships in numbers that other septs cannot match, and its skies are perpetually crossed by the transports ferrying finished wargear to the front.
Sa'cea's military doctrine reflects its industrial character: methodical, well-supplied, and built around overwhelming firepower rather than individual heroics. Fire caste officers trained here are known for meticulous logistics and a preference for grinding down an enemy through superior technology and sustained fire support, a style of war as unglamorous as it is difficult to defeat.
T'au Empire
Order of battle
The Sa'cea Sept field the units of the T'au Empire — a detachment from the roster:
Kindred formations
Other T'au Empire formations
Bork'an SeptBork'an is the foremost seat of learning in the T'au Empire, its systems crowded with universities, laboratories and the deep-void observatories of the Earth Caste. From this scholarly sept came breakthroughs such as the stasis field and the first piloted battlesuit, and its Fire Warriors march to war bearing the finest experimental armaments the Empire can produce. Its cadres fight with cold, measured patience, trusting that a lesson learned in the laboratory will be repaid a hundredfold upon the battlefield.
Dal'yth SeptDal'yth is the beating heart of T'au commerce, a First Sphere world whose culture is dominated by the silver-tongued merchants and diplomats of the Water Caste. More cosmopolitan than any other sept, its worlds teem with aliens of a hundred species who trade, treat and dwell alongside the T'au. It was Dal'yth's envoys who bound the Demiurg to the Greater Good, and its markets are counted among the Nineteen Wonders of the Empire.
Farsight EnclavesThe Farsight Enclaves are a cluster of fortress-worlds beyond the Damocles Gulf, ruled by the renegade Fire Caste hero the Imperium names Commander Farsight. Severed from the wider Empire and forbidding all Ethereals within their borders, the Enclaves keep to the old warrior traditions and trust the blade and the battlesuit above the words of any spiritual master. To the T'au they are the Forbidden Zone, a heresy that endures; to their own people they are a free realm guarded by the finest commanders alive.
T'au SeptThe homeworld sept and spiritual capital of the empire, birthplace of the Ethereal caste's founding vision.
Vior'la SeptA volcanic frontier sept renowned for producing the empire's most aggressive commanders and battlesuit pilots.