Siege of Tarvokia

The Siege of Tarvokia was an Imperial castigation campaign conducted by the Rassian Iron Corps and dozens of additional Astra Militarum and Adeptus Astartes Chapters to help in the excoriation of the Forces of Chaos from the Imperial world of Tarvokia.

Background
The Rassian Iron Corps answer the calls of the Departmento Munitorum to assist the besieged World of Tarvokia, along with dozens of Astra Militarum Regiments and several Space Marine Chapters.