As part of his visit to Scotland, David Cameron is due to visit HMS Victorious, a Royal Navy submarine which keeps Trident nuclear missiles continuously at sea.
The Scottish National Party say they would scrap Trident in an independent Scotland.
However, Mr Cameron says it would be 'foolish' to abandon it because of the threat of nuclear attack from North Korea.
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A look ahead at the forecast for the Border region.
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Michael Wolfe was knocked down by a tractor in Longtown, on 10 August. His family and friends led a funeral procession through the town.