Wars of Apostasy
After the Black Templars Chapter keeps in the Segmentum Solar were bombarded by the fleet of the insane High Lord Goge Vandire, the Chapter High Marshal Sigenandus was enraged, declaring a crusade to be launched against Vandire on Terra. The Black Templars were joined by the Imperial Fists, Fire Hawks, and Soul Drinkers as well as the forces of the Adeptus Mechanicus. After besieging Vandire's palace on Terra for many months, Imperial Fists Chapter Master Lazerian finally managed to form a breach. During the assault on the breach Emperor's Champion Navarre was decorated for not allowing the Chapter Standard to fall in battle. As his empire collapsed around him, the Mad Lord finally met his end at the hands of his own trusted subordinate, Alicia Dominica.