Parthorum Xenocide

This article is about a battle in the /tg/ Heresy project, a fan re-working of the Warhammer 40k universe.

Parthorum Xenocide
Date	811
Scale	sector-wide
Theatre	Parthorum Sector
Status	Decisive Imperial Victory
Belligerents
Imperium of Mankind	Osroene Empire
Commanders and Leaders
Hektor Cincinnatus	Empress Etuili Sevoold
Strength
3rd Expedition Fleet	armed forces of the Osroene Empire
Losses
Outcome
Parthorum Stream secured for Imperial shipping

The Parthorum Xenocide was the Imperium's name for the first of its three wars for the worlds of the Parthorum Sector. Only one Osroene-authored history of the conflict exists, in the little-read annals of the Pretender Sevtal Sevoold. Sevoold refers to this conflict as the Cataclysm, for the coming of the Imperium heralded the destruction of his people.

Background

The Imperium had known about the Parthorum Sector for months before Hektor Cincinnatus was finally granted permission to launch a campaign of conquest. Although the Primarch was perhaps the third-most powerful of the Imperium's warlords, after the Emperor and Malcador the Sigilite, he had faced considerable opposition to his plans among the Terran adepts of the War Council. Ever confident, Hektor had begun planning while the matter was still in dispute, drawing on the reports of Rogue Traders Militant. Adela Exard's navigational and cultural records were of particular value, so much so that Exard and her Cruiser Black Joke were hired on to augment First Legion's forces during the campaign.

Imperial Order of Battle

For the outset of the campaign, Hektor had expanded his 3rd Expedition Fleet with the vessels and flotillas of several Rogue Traders Militant. The precise make-up of the forces under command of these idiosyncratic leaders is in doubt and the limited records available often contradict one another. The order of battle described below is therefore somewhat speculative.

• 3rd Expedition Fleet - Hektor Cincinnatus
  • Naval Task Force - Orion Mucius
  • 1st Phalanx, Chrysaspides - Hephaestion Horatius
  • 2nd Phalanx - Erasmos Sergius
  • 3rd Phalanx - Lysimachos Fabius
  • Various Auxilia formations drawn from the Solar Auxilia and The Carlisian Shock Troops.
• Rogue Trader contingents
  • Flotilla of Lord Captain Megasu Athon
  • Cruiser Black Joke - Captain Adela Exard