The Warmasters Forces

The Gurash Nebula was brought to compliance by the 816th Expedition Fleet during the Great Crusade, and his been under the combined supervision of the IVth Legion and Mechanicum peacekeepers ever since. With the outbreak of the Heresy, disparate forces have been trickling in to the sectors of the Nebula at a steady pace. Task forces, war bands, rogue elements of both Loyalist and Traitor forces. What follows is a summation of known elements fighting for the Warmaster at the start of the Gurash Wars

Adeptus Astartes: Dark Mechanicum Traitor Imperial Army elements Herical Cults and Rebel militia's
 * Sons of Horus
 * Iron Warriors
 * Emperor's Childeren
 * Word Bearers
 * World Eaters
 * Gurashan Ascendency
 * The Graevan Caliphate
 * The Valdecian Conglomerate
 * The Korasine Crusaders
 * Khaedon Seccesionists
 * Hillaton Freedom Fighters
 * The Red Shrine
 * The Path of Heaven