The Cogenians were a humanoid race native to the planet Cogen V.
In 2368, a combined Borg–Cyberman fleet assaulted Cogen V and began assimilating the world and its people. The Cybermen abducted the entire Cogenian population and took them away for cyber-conversion.
The Cogenians constructed sentry drones to defend parts of their world. (COMIC: Assimilation²)