ISIS has 5,000 fighters in Libya and has threatened to turn the war-torn North African country into part of their brutal Caliphate beyond Iraq and Syria.
It comes as western forces position themselves in North Africa or a major war alongside the Libyan government to stop the spread of Islamic State.
Now SAS troops who first deployed to Libya last month at the Gamal Abdel Nasser military base, south of Tobruk are operating with French and US special operations teams against Islamic State.
They have escorted MI6 teams in meeting Libyan officials to discuss supplying weapons and training to the regime army and militias to be used against ISIS.
