Prime Minister David Cameron will say Scottish defence jobs are more secure as part of the UK.
During a visit to Scotland, where he will host a PM Direct event, Mr Cameron will spell out Westminster’s commitment to defence spending in Scotland.
The UK Government has come under fire for its defence basing review, which went back on promises made by former Defence Secretary Liam Fox but will still see hundreds more troops based north of the border.
Ahead of the visit, Mr Cameron said: “Defence matters. And defence jobs matter. Scotland has a world renowned and highly skilled defence sector that employs over 12,600 people and has annual sales in excess of £1.8 billion.
“It plays a key role in equipping and supporting the UK armed forces from iconic industries like shipbuilding on the Clyde and Rosyth to cutting edge, high-tech manufacturing.
“Being part of the UK opens doors for the Scottish defence industry around the globe. When we sell Typhoons overseas, this benefits jobs and growth for companies making components in Scotland.
“Scotland counts for more on the world stage because it is part of the United Kingdom and Scottish defence jobs are more secure as part of the United Kingdom.
“The business community tell me that they want certainty and I want to offer that certainty by saying that I remain absolutely committed to the defence of the United Kingdom and to the future of defence jobs in Scotland.
“Defence matters. We are stronger and safer together.”
Scotland’s Deputy First Minister Nicola Sturgeon has once again challenged the Prime Minister to go face to face with First Minister Alex Salmond in a televised debate about independence.
A YouGov poll commissioned by the SNP showed that over two-thirds of people in Scotland believe Mr Cameron should agree to take part in a TV show.
Ms Sturgeon said: “David Cameron should use his visit to Scotland to speak for himself and agree to a head-to-head debate with Alex Salmond.”
A spokesman for the Prime Minister said: “This is a debate which should be led in Scotland by Scots. It is not a debate between Alex Salmond and the rest of the UK, it is a debate between Alex Salmond and the rest of Scotland.”