Image source, BAE

Shipbuilding unions have welcomed confirmation that eight of the new Type 26 Global Combat Ships are to be built on the Clyde.

But the SNP said the order had been reduced from 13, which it said was a "betrayal" of shipyard workers.

Prime Minister David Cameron made the announcement in the latest defence review.

He also said the UK would design a new class of frigate which would be built in Scotland if it was still in the UK.

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Away from the defence review, an SNP MP has been named as the person being investigated by police over financial discrepancies from a campaign fund for Scottish independence.

Natalie McGarry, the Glasgow East MP, was one of the new intake of nationalists MPs in May's general election.

The party said it was aware of discrepancies in the accounting at Women for Independence.

Ms McGarry's solicitor said she denied any wrongdoing.

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Carole Walker
Political correspondent

The Ministry of Defence has confirmed the start date for the new Successor submarines to replace the Vanguard fleet has been put back. The review says the first Successor submarine will enter service "in the early 2030s" - previously this was due in 2028. 

A brief recap of today's main political stories:

• David Cameron delivered a Commons statement on the Strategic Defence and Security Review, and announced that up to 10,000 troops could be deployed on to British streets in the event of a Paris-style attack.
• He also set out plans for an extra £12bn for military equipment and two 5,000-strong "strike brigades", and revealed the cost of renewing Trident could increase by £6bn.
• Earlier, the prime minister was in Paris for talks with French President Francois Hollande. Speaking afterwards, Mr Cameron said the "world is coming together" to fight so-called Islamic State.

• Ed Miliband has come to the defence of his successor, Jeremy Corbyn, saying he is fit to lead the country and ruling out being a "back-seat driver" for the new Labour leader
• A cap on spending on NHS agency staff comes into force in England on Monday, to save £1bn over the next three years.

The defence review will "break down the barriers" preventing the military from being deployed on the UK's streets, David Cameron says. This does not in any way undermine the police, he adds:

Here's a reminder of the key points of the government's defence review:

• A new terror contingency plan, with up to 10,000 military personnel available to support the police in the event of a Paris-style attack

• "Strike brigades" sourced from existing Army numbers and equipped to deploy across the globe using the Army's new generation of Ajax armoured vehicles
• Nine new Boeing P8 maritime patrol aircraft, filling a gap left by the highly-criticised decision in the last review in 2010 to scrap a new generation of Nimrod aircraft
• A 10-year extension to the operational lifespan of the RAF's Typhoon jets, until 2040, and upgrade work to give them ground attack capabilities - effectively adding two additional front-line squadrons to the nation's air force
• The government will replace the UK's four ballistic missile submarines, with the MoD saying the cost has increased to £31bn - up £6bn on the previous estimate
• At least 13 new frigates and two new offshore patrol vessels - including eight Type 26 anti-submarine warfare frigates.

Welsh Secretary Stephen Crabb has said he expects to make big changes to proposals for the next stage of devolution before they come into law.

He suggested the current set of proposals left too many powers in Westminster.

The draft Wales Bill, external would give new powers to the assembly over energy, transport and its own elections.

Critics like the Welsh government have said the bill risks rolling back on the current devolution settlement.

More here.

Will MPs get to vote on whether to renew Trident, the UK's nuclear weapons system? The review commits only, external to a "debate" on the subject. But during this afternoon's exchanges in the Commons, David Cameron has said "obviously at the appropriate moment, we'll want to have a vote in this House" and subsequently "I'm very keen that we have a vote."

David Cameron says he is confident the "huge project" to get the UK's reservist numbers up to 35,000 will reach its target. He also appeals to MPs to "put aside party differences" when it comes to a vote on UK military intervention in Syria.

Nobody should feel "bounced" into a vote on Syria, David Cameron says - but he adds that every day is a day "not getting to grips with the ISIL menace". The PM is to make his case for air strikes on Thursday in the House of Commons. A vote is widely expected to come within a fortnight or so.

It's thinning out a bit in the House of Commons at the moment but there are still quite a few MPs looking to ask a question of the PM on his plans for the UK's future defence strategy and spending.

The World at One
BBC Radio 4

Conservative MP Rehman Chisti says the "mess" in Syria was created by the "indecisive" international community leaving the Russians to put forward their agenda to keep President Assad in power.

He says "there are many questions which have to be answered before I decide which way to vote".

Earlier on Daily Politics the issue was whether Labour should stick with manifesto on Syria and Trident? And should all party MPs be forced to back leader Jeremy Corbyn's policy? Tory MP Johnny Mercer, Labour MP Wes Streeting and party activist Stephen Low discussed the issues facing Labour.