Conservative MP Mark Reckless was one of 43 MPs to vote against today's motion for British air strikes in Iraq.
The right-wing politician explains his position in this tweet:
I voted against bombing ISIL in Iraq. A year ago we were asked to bomb other side in Syria +what good did 557 MPs voting to attack Libya do?
The Archbishop of Canterbury Justin Welby has told ITV News the rise of Islamic State militants is a 'once in a millennium threat'.
A "small specialist team" of British soldiers is training Kurdish forces near the town of Erbil in Iraq, the Ministry of Defence said.
The FBI want help to identify an English-speaking militant captured on a video released by the Islamic State last month.