Siege of Zalathras
The Siege of Zalathras was an engagement by the Ultramarines 2nd Company under Marneus Calgar himself against Ork forces under Warboss Brug. Occurring in 797.M41, Brug's forces laid siege to the world but were unable to pass the city gates, which Calgar held by himself for a day and a night, without a single Ork slipping by him. Regrouping with his forces, the Ultramarines counterattacked and smashed the Ork forces on the planet.
- 1: Warhammer 40,000 6th Edition Rulebook pg.173
- 2: Codex: Space Marines (5th Edition), pg.84
- 3: The Chapter's Due (Novel) by Graham McNeill, Chapter Eighteen
- 4: Iron Warrior (Novella) by Graham McNeill, Chapter One