SAS on ground during Libya crisis
19 January 2012 Last updated at 00:40 GMT
The British involvement in the campaign to overthrow Col Muammar Gaddafi was a very public one, particularly the part of it involving the use of RAF aircraft.
The fighting on the ground was said to have been done by Libyans but Newsnight has learned that British soldiers were on the ground in Libya, alongside the anti-Gaddafi forces.
Mark Urban reports.