Chronology of the Xhorik Wars

Although there have been countless conflicts that have involved the Xhorik System over the millennia, there have so far been four of such scale and impact that they are known in the Imperium's official histories as the Xhorik Wars. 

The First Xhorik War was the conquest of the system during the Great Crusade. The Xhorik System was the core of a local empire known as Yitus that resisted the Emperor's Compliance circa 948-950.M30. The war involved forces from the Sons of Horus, Death Guard and White Scars, along with numerous armies of Auxillia, arrayed against the combined local forces of the surrounding systems.  

The Second Xhorik War was the campaign for the Xhorik System in 007-008.M31 during the Horus Heresy. Because of its key location on critical warp current jump points between Istvaan and Terra, both sides fought tenaciously for this strategic system. Ultimately, Horus gained control of the system on his long march to Terra. The main belligerents were Sons of Horus, Death Guard, and World Eaters against White Scars, Blood Angels and a small detachment of Imperial Fists, with both sides making extensive use of Auxillia. 

The Third Xhorik War occurred in 546.M32 during the War of the Beast (544-546.M32) when Orks rampaged across the Imperium on a massive scale. The war ended with the destruction of a massive Ork Rok in orbit around Xhorik Prime, vastly altering the planet's ecosystem for millennia. In hindsight, this was likely one of the first encounters of the Imperium with the lifeforms now known as Tyranids, but this was not recognized at the time. The importance was not understood and so the records remained unread, buried deep in Imperial libraries for millennia until they were sought out in the midst of the Tyrannic Wars. 

The Fourth Xhorik War occurred in 993-997.M41. What started as a seemingly minor and routine Ork incursion escalated into a war that engulfed much of the sub-sector during a time of great turmoil in the Imperium: what became known as the Time of Ending and the Tyrannic Wars. The fate of the Xhorik System during this massive conflict is yet to be written...