Parthorum Wars

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

Parthorum Wars
Date	811-823.M30
Scale	sector-wide
Theatre	Parthorum Sector
Status	Imperial Victory
Belligerents
Imperium of Mankind	Osroene Empire rebel forces
Commanders and Leaders
Hektor Cincinnatus	Empress Etuili Sevoold local leaders
Strength
First Legion	armed forces of the Osroene Empire Irregulars
Losses
Outcome
Parthorum Stream secured for Imperial shipping, worlds in this region eventually brought into Compliance

The Parthorum Wars were a series of military conflicts fought by the Imperium of Mankind in the early years of the Great Crusade. The conflict centered on the Parthorum Stream, a long stable current in the Warp close to Terra. This region's strategic significance is underscored by the deployment of a mighty Expedition Fleets of the First Legion to this sector in the three major actions of the wars.

Background

Following the Treaty of Mars and the conquest of the remaining outposts of the Solar System, the Imperium's Expedition Fleets began to bring systems near to Sol into compliance. These first steps of the Great Crusade were accomplished using short "calculated" Warp jumps of no more than 5 Light Years at a time but they were nonetheless successful. Meanwhile, the Emperor prepared to launch his Legions further out into the Galaxy. On ancient Terra, the master of mankind set about the construction of a great beacon into the Warp, the Astronomican. This miraculous device would provide a fixed point of reference for mutant Navigators to guide humanity's ships through the Warp for hundreds of Light Years in a single jump.

Parthorum Xenocide

In 811.M30, the First Legion descended upon a Xenos-ruled Empire located in the Parthorum Stream. The alien Osroene had vast legions, but Hektor used his Astropaths and Navigators to out-maneuver his foes at every turn. After a sequence of crushing defeats, the Xenos offered the Imperium terms - but by this stage their demise was inevitable. Within a year, the Osroene had been reduced from a sector-spanning Empire to a few handfuls of refugees.

Second Parthorum Pacification

Although the Osroene had been decisively defeated, their human subjects did not take easily to the Imperial Truth. Small-scale rebellions simmered for years, before a succession of planetary revolts overwhelmed the Imperial garrisons. Leonidas Manisicus led the 6th Expedition Fleet in a short, sharp punitive action to put down the rebels in 818.M30.

Third Parthorum Pacification

The 6th's victory proved fleeting. Although the worlds they had punished remained passive in this revolt, other systems in the Parthorum Stream threw off the Imperial yoke in 822.M30 and would not be restored to order until the arrival of Hektor's own 3rd Expedition Fleet the next year.