Twelfth Cyber Legion

The Twelfth Cyber Legion was a Mondasian Cyberman fleet (REF: The Brilliant Book 2012) that monitored their local galactic quadrant. It was positioned twenty thousand light years away from Demon's Run when part of the fleet was destroyed by the Eleventh Doctor in the build-up to the Battle of Demon's Run, just to make a point to the Church's Anglican Regiment and the Cybermen. Rory Williams went to a Cyber Ship to learn the location of Demons Run from the Cybermen. (DW: A Good Man Goes to War)