Eleventh Cyber Legion
From Tardis Wiki, the free Doctor Who reference
The Eleventh Cyber Legion was a Cyber Legion.
The Ninth and Eleventh Cyber Legions once joined forces to conquer the planet Agrippina in the Tiberian Spiral. The Cybermen were ultimately successful, with the human colonists of Agrippina having only antiquated anti-cyber threats to defend themselves. (PROSE: Ghost in the Machine)