Thousands of jobs on the Clyde will be secured with a £500m investment for the Royal Navy's Faslane base, the Chancellor has said.
George Osborne visited HM Naval Base Clyde, home of the UK's nuclear deterrent, to announce a 10-year programme of work due to begin in 2017.
The new contracts will ensure the future of the base's 6,700 military and civilian staff and contractors, with the workforce expected to increase to about 8,200 by 2022, he said. The work will include the construction of sea walls, jetties and other projects as the base gets ready to host the country's entire submarine fleet.
The SNP and Plaid Cymru, which oppose the renewal of the Trident missile system, said the Chancellor's priorities were "fundamentally wrong". SNP Westminster defence spokesman Brendan O'Hara called on him to focus instead on welfare support and spending on conventional defence forces, which he said had been "cut to the bone" in Scotland.
Mr Osborne attacked what he described as an "alliance" between nationalists and those on the Left in the Labour Party, who he said were against the mainstream "consensus" on the nuclear deterrent.