T'liss (planet)

T'liss was a class P planet in the T'liss system, inside Romulan space. Following the discovery of decalithium deposits in the western continent, the planet became contested territory between the Romulan Star Empire, Starfleet and the Hirogen. 

History
In 2409, Starfleet repelled a Romulan incursion into the system. 

In the same year, the a Borg cube investigated the system in search for Iconian technology. [Cube 19721 was heavily damaged in the process. Soon after, the Tal Shiar attempted to salvage the derelict cube but reactivated it accidentally. The destroyed the cube.

The asteroid field in vicinity to T'liss harbored Nausicaan pirates. Their ships were destroyed by the Tal Shiar.