Praetonis V

Praetonis V is an Imperial forge world of the Zeist Sector in the Ultima Segmentum.

During the Zeist Campaign, dated to 999.M41 in one account and 997.M41 in another, the world was under assault by the T’au Empire. Captain Cato Sicarius of the Ultramarines struck at the T’au there to break their assault, and forces of the Night Watch, Halo Dragons, Silver Skulls, Crimson Fists and other Chapters joined him on Praetonis V. He used the momentum of that victory to begin driving the T’au back across the sector.