The Riatov System is an Imperial star system located in the Chalnath Expanse in the northern Segmentum Ultima of the Imperium Nihilus. In the wake of the Great Rift's birth in the Era Indomitus the system was invaded by the forces of the T'au Empire's Fifth Sphere Expansion.
Even as the T'au launched their invasion of Riatov, a series of uprisings by a Genestealer Cult began, which transformed the system's worlds into an inferno of bloodshed as a three-way-conflict between the Astra Militarum, the Genestealer cultists and the T'au ensued, a small part of the wider Chalnath Expanse Campaign.
The Riatov System was the home system for several major groups of Astra Militarum regiments, including the Riatov Dragoons armoured regiments, the Riatov Grenadiers infantry regiments and the Riatov Ordnancers artillery regiments.
Riatov Order of Battle[]
T'au Empire[]
- T'au Fifth Sphere Expansion - All the T'au forces deployed to the Riatov System were led by Commander Darkstar.
Genestealer Cults[]
- Daughters of Devotion - 9 Sub-sects
- Sons of the Wyrm - 6 Brood-cycles
- Yasilian Bridge Builders - 5 Claws
- Wurmblood Dynasty - 7 Sub-sects
- Union of the Sacred Coils - 8 Sub-sects
- Berngard Infiltrators - 3 Brood-cycles
- Offspring of the Pure - 7 Brood cycles
- Aradov Mining Lodge 101 - 17 Claws
- Slop-shufflers Worker Guild 872 - 23 Claws
- Sewer-cleansers Section 3 - 19 Claws
- Synod of the Coils Cathedra - 6 Sub-sects
- Riatov Prime Rifles - 8 Infantry Regiments
- Riatov Underhive Irregulars - 17 Scratch Battalions
- Others unlisted
Astra Militarum[]
- Cadian Shock Troopers - 8 Infantry Regiments
- Riatov Grenadiers - 88 Infantry Regiments
- Riatov Ordnancers - 28 Artillery Regiments
- Riatov Dragoons - 39 Armored Regiments
- Duacarro Irregulars - 57 Infantry Regiments
- Thaxarillian Guard - 42 Infantry Regiments
- Gnarvis Fusiliers - 36 Regiments
- Euthenian Voltigeurs - 29 Infantry Regiments
- Euthenian Hussars - 12 Armored Regiments
- Faeburn Vanquishers - 48 Regiments
- Ennunan Bushmasters - Unknown
- Perkuni Hearthguard - 37 Regiments
- Yamnin Volunteers - 18.5 Artillery Musters
- Anvarsian Ice Rangers - 19 Infantry Rangings
- Tempestus Scions - Classified
Sources[]
- Psychic Awakening: The Greater Good (8th Edition), pg. 6
- Warhammer 40,000: Core Book (9th Edition), pg. 171