Battle of Gandor's Providence
The Battle of Gandor's Providence took place sometime after the 13th Black Crusade.
During the battle, the advance of the Hounds of Abaddon through the Bellicose Stars comes to a halt when they are met by the Imperial Fists on Gandor’s Providence. The Fists deploy numerous squads of Primaris Space Marine Intercessors, creating a series of heavily defended redoubts across the surface of the agri world. Rather than allowing themselves to become bogged down in a prolonged siege, the Hounds of Abaddon withdraw.