Here are the first pictures of RAF jets preparing to bomb ISIS in Syria
Prime Minister David Cameron is determined to target ISIS in its heartland of Syria. The city of Raqqa in the north of the country is the terrorist group's self-declared capital.
The decision to launch bombings has caused major splits in the Labour Party.
Below are some of the first pictures from RAF Akrotiri in Cyprus, a key base from which many of the attacks will be launched.