The Prime Minister will say the UK is 'stronger and safer together' as he visits Scotland today.
Speaking ahead of a trip to the offices of a defence contractor, David Cameron said:
“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.
“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. "Defence matters. We are stronger and safer together.”
Meanwhile, ahead of the visit, Scotland's Deputy First Minister has stepped up calls for David Cameron to agree to a live TV debate with Alex Salmond on Scottish Independence.
"First and foremost in such a referendum debate should be the UK Government’s brutal welfare cuts – and how David Cameron can possibly justify the Westminster system imposing iniquitous measures such as the Bedroom Tax on Scotland when over 90 per cent of Scottish MPs voted against it.
“David Cameron should use his visit to Scotland to speak for himself and agree to a head-to-head debate with Alex Salmond – if he does not, the conclusion we can take is that he is incapable of defending Westminster’s attacks on working families and some of our most vulnerable citizens to the people of Scotland.”
More top news
After a cold weekend the temperatures rise, but cloud, rain and stronger winds move in. Here's the forecast for the next few days
John Davidson, who grew up in Newcastleton, was killed while trying to arrest a suspect last week.
Police are looking at CCTV footage after money was taken from her bag in a shop in the town.