Editing Age of the Dark Imperium (section)

==Indomitus Crusade==
{{Main|Indomitus Crusade}}

[[Roboute Guilliman|Big G]]'s first military campaign after crowning himself the Lord Commander of the Imperium. The Indomitus Crusade was aimed at shifting the Imperium into the offensive after the damage done by the 13th Black Crusade by going into the stranded "Dark Imperium" and try to liberate as many besieged Imperial worlds as possible, while exterminatusing those unable to be taken. Additionally, the other objective is simply to kick Chaos out of their lawn and try to re-establish some form of order in the Imperium so Guilliman can begin to fix what's left of it.

Aiding him here are whatever Imperial forces he could muster, dozens of space marine chapters, and the [[Primaris Marines]], [[Cawl|Daddy Cawl]]'s pet project.

By the end of the Crusade, Chaos' momentum had effectively been destabilized and halted, but the damage has been done. Hundreds of Imperial worlds have either been destroyed or corrupted beyond measure and while Chaos' advance has been stalled for the moment they're still causing trouble for the Imperials. On top of that, much of the "Dark Imperium" is still cut off from the Astronomican and is generally defenseless.

Overall, Guilliman stopped the Imperium from bleeding to death, but now he has to contend with a nasty infection from the wound. Still, you can nurse a sick man back to health, but you can't do anything anymore once he's dead.

Speaking of infections and sickness, during the confusion Nurgle's armies invade Ultramar, forcing Guilliman to return to defend his home system.