Share your views with us - @BBC_HaveYourSaypublished at 13:19 Greenwich Mean Time 2 December 2015
Ian Grant
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
Alex Hunt, Pippa Simm, Chris Davies, Aiden James and Rajdeep Sandhu
Ian Grant
Sir Alan Duncan says the UK's international reputation suffered after Parliament voted against military action against Syrian President Assad in 2013, and "our allies now question whether we can be relied upon when they call for joint assistance."
Should Britain continue to remain on the sidelines it would signal to the world that the UK "has indeed chosen to withdraw", and adds:
Quote MessageWe should not be in the business of national resignation from the world stage."
Following Jeremy Corbyn it is Conservative MP Alan Duncan who is the first backbencher to address MPs.
Explaining why he's in favour of air strikes he tells MPs there's a real prospect of "an arc of brutality and terrorism stretching" across the Middle East and to the horn of Africa.
"We can't turn away from this threat and subcontract our obligations," he argues.
Simon Renouf
Ross Parker
Sam
I think that a conflict in Syria is a realistic possibility for the future of the UK. Although I agree with the air strikes in principle, the effect of these will only be tangible if they're combined with an effective ground force.
Lucy Fisher
After the Paris attacks, for some days my reaction was that we must bomb ISIS. Now the dust has settled I fear this will inflame the situation. We must render them impotent by all means possible. Dropping bombs is one option, but I don't feel confident that the international community is sufficiently coordinated at this point for air strikes to have the desired impact. We must ensure this death cult is not being supported by any of our 'allies'; we must stop its propaganda, and we must ensure a coordinated response with the likes of Russia to bring an end to Syria's agony.
Matt Jackson
@Fran75GB
Fred Roberts
Suresh Savjani
Without boots on ground, we will not be able to sort out ISIS, and my big concern is the civilian casualties with the proposed British bombing in addition to so many other countries also bombing. This is surely likely to increase radicalisation and more terrorism.
Quote MessageIn my view only a negotiated political and diplomatic endeavour to bring about an end to the civil war in Syria will bring some hope to the millions who've lost their homes, who are refugees camped out in various points across Europe dreaming of a day that they can go home. I think our over-riding goal should be to end that civil war in Syria. And obviously also to protect the people of this country."
Jeremy Corbyn, as he continues to set out his case against military action in Syria, warns it would play into IS's hands.
He adds that David Cameron has "failed" to make the case for air strikes, and he believes the PM doesn't have the "consensus" in Parliament that he wants.
Quote MessageIraq, Afghanistan, Libya: I ask members to think very carefully about the previous decisions we've made."
Jeremy Corbyn says the government's motion doesn't fulfil the conditions set out in Labour's party conference motion on Syria.
He recalls the West's record on military interventions in the Middle East which, he says, "must be analysed". He adds:
Quote MessageTo oppose another war is not pacifism, it's hard-headed common sense."
Jeremy Corbyn struggles to make himself heard over the noise in the chamber. Many MPs are trying to intervene in his speech but he says he's already taken lots of interventions. Speaker John Bercow intervenes to restore order.
"I'm not giving way. I'm really sorry but I'm not," adds Mr Corbyn.
Conservative MP Jacob Rees-Mogg raises a point of order with the Speaker to say Mr Corbyn has not answered MPs' questions about Iraq. Mr Corbyn says he wants to continue with his speech.
Jeremy Corbyn asks David Cameron to explain how British bombing in Syria will contribute to a "comprehensive, negotiated political solution" to the Syria conflict, arguing that such a settlement is the only way to defeat IS. All the main regional and international powers need to be involved in this, he adds.
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Labour MP for Tottenham David Lammy expresses his reservations that in potentially degrading so-called Islamic State "we create a vacuum into which other jihadists come over time".
Quote MessageThat, surely, does not make the streets of Britain safer."
Labour leader Jeremy Corbyn says "we have to be careful about what happens in the future".