United Nations Intelligence Taskforce

The United Nations Intelligence Taskforce (also known as UNIT) is a fictional military organization from the British science fiction television series Doctor Who. Operating under the auspices of the United Nations, its purpose is to investigate and combat paranormal and extraterrestrial threats to the Earth. In the original Doctor Who series, several UNIT personnel (such as The Brigadier) played a major role in the series. In the new Doctor Who series, UNIT has been referenced and appeared a few times but no specific UNIT personnel have been involved with the show the way they had been in the old series.
See more at Wikipedia.org...