The Background behind the battle for Cythis

"On the light of all the Information given to me, I have no choice but to issue a general Call To Arms to all Imperial Forces within the Tiberius Sector, to ensure the ownership of System G 674.5999.1 stays in Imperial Hands. The Operation will eb known as Operation Cythis"
Inquisitor Lord Rathbourne

Read the Transcript of an Imperial Commanders Meeting regarding System G 674.5999.1

Read the report from Inquisitor Van Guren regarding System G 674.5999.1

Read the Reports of Inquisitor Ferrero on Xenos activity

Read Correspondence Between 2 Inquisitors

Wolf Lord Haakon Iron Wolf to Inquisitor Rathbourne

Below read the motivations of the various races involved in the conflict: Some are vague and unfinished, others almost tell too much...

The Tau

It would be unwise for any Imperial forces to stray onto Mal'Caor Vash'Ya. Any who transgress upon on to our ancestral property will be eliminated with due efficiency"

The Eldar

The Runes have shown that Mon-Keigh Intrusion on to the Tau world will result in the pointless deaths of 10 000 Eldar. If the Great Enemy takes the world then there is a chance that the great Craftworld Ulthwe may be destroyed.To stop this we must ensure that the world is taken either by the rampagin Orks or remains with the Tau. Subtle manipluation of the Ork warlords will ensure that very few Eldar are at risk and protects the ancnient Craftworld. A secondary bonus will be the damage caused to the Great Enemy.