The Scottish National Party (SNP) wants a full breakdown of UK defence spending, including component costs and the location of major projects.
The party’s 2015 general election manifesto, launched this morning, said: “With taxpayers in Scotland contributing billions of pounds more than the Ministry of Defence currently spends in Scotland we believe that a far larger proportion of the defence procurement budget should be spent in Scotland.
“There should be a strategy developed by the MoD to ensure more small and medium sized enterprises in Scotland are part of the manufacturing support chain for major defence projects.”
There was also a pledge to use public contracts to provide community benefits, specifically employment and training and supporting community schemes.
It also said the SNP would work to ensure all suppliers to the Scottish government pay the living wage, through procurement guidance.
Party leader Nicola Sturgeon promised to raise public spending: "We want to see modest spending increases - the equivalent of increasing departmental spending by 0.5 per cent above inflation - in each year of the next parliament.”
Last week Scottish deputy first minister John Swinney said a strong team of SNP MPs at Westminster would push to put prompt payment measures for small businesses into law.
Speaking to business people in Glasgow, he said although the SNP government had “done everything it could” to boost small businesses with the powers of devolution, more was achievable.
“A strong team of SNP MPs at Westminster can do even more, pushing to put prompt payment measures for small businesses into law.”
• Additional reporting by Marino Donati