Collaborators are humans who serve the Espheni without the use of Harnesses or Eye Worms. Almost 3 years after the Invasion of Earth their numbers are growing and they have helped set up re-education camps to brainwash children and teenagers without Harnesses.(Ghost in the Machine) The 14th Virginia engaged collaborators before the arrival of the 2nd Mass,(Everybody Has Their Reasons) however, this was actually a trick by the Espheni generated clone of Katie Marshall to kill people who were in fact a threat to the Espheni. (Stalag 14th Virginia)