Clovis Rebellion

History
When the Forces of Chaos launch a Black Crusade into the Clovis Sector, a joint-Astartes strike force is sent to quell the five worlds that have become overrun by bloody insurrection. The Clovis Rebellion quickly escalates when a large force of Night Lords Heretic Astartes arrived and the Planetary Defence Forces of Clovis Prime crumbled. The Blades of Dorn, Ebon Knights and Blood Vultures launched a counter-attack to secure vital Imperial artefacts before Exterminatus was declared. It takes the three Chapters two more years of brutal conflict to cleanse the rest of the sector's worlds before they are declared free of corruption.