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Home to a large Inquisitorial Fortress, Talasa Prime is most notable for housing the headquarters of the Deathwatch Chapter of the Space Marines, known as the alien hunters. The Fortress at Talasa Prime recruits, trains, and equips Space Marines who join the Deathwatch in the art of hunting Xenos. The Fortress also recruits, trains and equips Kill-Teams composed from the Ultramarines, Scythes of the Emperor and Lamenters Chapters for service against the Tyranids.
- 1: Chapter Approved 2003, pg. 74
- 2: White Dwarf 306 (UK), pg. 30
- 3: Codex: Space Marines (8th Edition), pg. 25 — The Realm of Ultramar
- 4: Codex: Deathwatch (8th Edition), pg. 15