Night of a Thousand Rebellions
Carefully seeded and stoked by Chaos elements, the hundreds of uprisings all broke out on a single night across Segmentum Pacificus. Imperial worlds thought impervious to unrest such as Enceladus, Darkhold, and Minisotira were all beset by mass violence. Even the Lions Defiant Chapter of Space Marines found their Homeworld the victim of insurgent activity. Contact was lost with large swathes of the Segmentum as Chaos Space Marine forces moved in to take advantage of the discord they themselves orchestrated.
- 1: Codex: Chaos Space Marines (6th Edition), pg. 25
- 2: Warhammer 40,000 6th Edition Rulebook, pg. 177