Indomitus Crusade

The Indomitus Crusade preceded the aftermath of the 13th Black Crusade and sparked the greatest mobilization of Imperial resources since the Horus Heresy. The Crusade is lead by Lord Commander of the Imperium Roboute Guilliman, and his main opponent and rival is the sinister, the despoiler of worlds Abaddon. The Indomitus Crusade would unleash the hidden weapons of the Imperium, the Primaris Marines that would form into massive legion-sized armies to take the fight to Chaos and allow the Imperium to stabilize following the destruction of Cadia.

Apart of the new offensive taken by the Imperium, was the formation of the Unnumbered Sons, whole legion-sized armies that operated independent and struggled to push back the darkness that creeped closer to Terra. Abaddon has since attempted to coy the Traitor Primarchs into activity as a reaction to the revival of Roboute Guilliman.

Notable Campaigns

 * Ultramar Campaign
 * Blightsworn Plagues
 * Baal
 * Hive fleet Leviathan

Reference

 * Indomitus Picture Reference
 * Warhammer 40k Indomitus Crusade