MPs vote by 397 to 223 to authorise UK air strikes against so-called Islamic State in Syria
RAF Tornado jets carry out their first air strikes against IS in Syria, the Ministry of Defence confirms
Four RAF Tornado jets take off from RAF Akrotiri in Cyprus
During a 10-hour debate, David Cameron urged Tory MPs to 'take a stand' against IS
Jeremy Corbyn said the PM's case "does not add up" and could make the situation worse
Despite Tory rebels, PM was helped by votes of some Labour MPs, the Lib Dems and DUP
A separate cross-party amendment opposing airstrikes was defeated by 390 votes to 211
Email: haveyoursay@bbc.co.uk
Michael Shaw
Like most people, my heart wants to do something to help the situation for people living in Syria. My head says that whether or not the UK drops a few bombs, it won't make any difference on the ground in Syria. Those bombs will be dropped from French or US planes instead. I would support a well thought out plan to impose stabilisation on Syria, but that is not on offer in today's vote.
Conservative MP Mark Spencer says the PM is making a "very strong case" for military action in Syria, and asks that the UK's security services and policing will be strengthened here. David Cameron says he's right to raise that point.
Meanwhile, Lib Dem leader Tim Farron - whose party is backing air strikes - calls on the PM to reconsider his limit on the number of refugees being accepted in the UK.
Tasmina Ahmed-Sheikh, from the SNP, is the latest to call on David Cameron to withdraw his "terrorist sympathisers" comments.
He responds by saying: "Everyone is now focused on the main issues in front of us (in this debate)."
BBC Radio 4 Today programme presenter tweets...
Allow Twitter content?
This article contains content provided by Twitter. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read Twitter’s cookie policy, external and privacy policy, external before accepting. To view this content choose ‘accept and continue’.
Addressing claims the government's approach could radicalise Muslims in Britain, he says that failing to act would be a betrayal of British Muslims
Quote MessageBritish Muslims are appalled by Daesh. These women-raping, Muslim-murdering, medieval monsters are hijacking the peaceful religion of Islam for their warped ends."
He adds: "Far from an attack on Islam we are engaged in a defence of Islam."
Tweet: @BBC_HaveYourSay
Cerys X
David Cameron is now explaining the government's "overall strategy" which, he says, includes counter-extremism and counter-terrorism, political and diplomatic processes and humanitarian efforts.
He announces a "comprehensive review" to root out any remaining funding of extremism within the UK, which will report in spring next year.
Allow Twitter content?
This article contains content provided by Twitter. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read Twitter’s cookie policy, external and privacy policy, external before accepting. To view this content choose ‘accept and continue’.
Email: haveyoursay@bbc.co.uk
Paul Hallett
Whether Einstein said it or not, it is lunacy to continue to do the same thing over and over and expect different results. We armed Mujaddeen, who turned into the Taliban, so we armed another group, who’ve turned into ISIS: whose turn in the vacuum is next, whose turn to fill the void we’ll leave. As Clive Lewis MP said; ‘you cannot bomb an ideology’, you cannot fight this way this. This time it is different, it is a different kind of war.
BBC political editor tweets...
Allow Twitter content?
This article contains content provided by Twitter. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read Twitter’s cookie policy, external and privacy policy, external before accepting. To view this content choose ‘accept and continue’.
It's still standing room only in the chamber - those MPs who want to have the chance of speaking have been told to stay in the Commons until all the front bench speeches have been delivered
Quote MessageIf we don't act now we should be clear there will be even fewer ground forces over time as Daesh will get even stronger. In my view we simply cannot afford to wait. We have to act now."
Labour's Gisela Stuart offers the PM some "motherly advice" - that he should withdraw his "terrorist sympathisers" remarks, saying it would improve his standing in the Commons.
Tweet: @BBC_HaveYourSay
@Nibo1960
Conservative MP Andrew Bridgen seeks assurances the government is committed to humanitarian efforts in Syria. David Cameron offers him those assurances, saying the UK has been the second largest bilateral donor in the world, "and we will be keeping that up".
Email: haveyoursay@bbc.co.uk
Luke Coles
I think David Cameron is at fault for using the term terrorist sympathisers, but the opposition need to rise above that and get down to the actual politics, like some MPs seem to understand.
David Cameron is now addressing his claim of 70,000 moderate anti-IS fighters in Syria who could combat the extremist group on the ground.
The prime minister explains where the figure has come from: it's an assessment from the independent Joint Intelligence Committee based on up-to-date intelligence.
Of these 70,000 the majority are from the Free Syrian Army, MPs are told, with about 20,000 Kurdish fighters "with whom we can also work". He says he's not arguing that they're all "ideal partners".
RAF air strikes in Syria can do "serious damage" to IS and prevent their ability to carry out attacks on the UK's streets, argues David Cameron.
Quote MessageDo we wait for perfection, which is a transitional government in Syria or do we start the work now of degrading and destroying this organisation at the request of our allies and the Gulf states, and on the knowledge from our security experts that it will make a difference?"
Email: haveyoursay@bbc.co.uk
Matthew Hamill
Ten countries have been bombing ISIS in Syria for the last fifteen months, dropping 30,000 bombs and causing 2,000 civilian deaths. Given that this has had no concrete detrimental impact on ISIS, the question the Prime Minister has to answer and is failing to do so, is what difference will this British involvement make?
David Cameron says many of the plots against the UK are formed in Syria, as he makes the case for targeted bombing against the extremist group's targets in Raqqa.
Asked what exactly the bombs would target, the prime minister tells MPs the strikes would focus on the communications hubs, training camps and the leaders of the "death cult". He acknowledges there would be "casualties" but says the jihadist group must be defeated.