Tarschi
From Warhammer 40k - Lexicanum
The Tarschi were a civilization that existed during the Great Crusade, though it is not known if the humanoids were a Xenos species or an off-shoot of Mankind.[1]
They resided on the Tarsch Belt, a string of worlds on the edge of the Crusade's southern front, and resisted the Imperium's efforts to bring their Homeworlds into Compliance. A Luna Wolves strike force led by Captain Verulam Moy was initially sent to destroy the Tarschi, but they were held at bay for several months and eventually the White Scars' Brotherhood of the Moon, led by Torghun Khan, was sent to aid them. Working together the Luna Wolves and White Scars' forces soon destroyed the Tarschi and left their cities in blazing ruins.[1]
