The Prime Minister's pro-stance on nuclear weapon is the opposite to that of Scottish First Minister Alex Salmond who is anti-nuclear.
Mr Salmond has said that if Scotland gets its independence nuclear, his SNP party will not allowed nuclear weapons to be based there.
Recently, Mr Salmond said: "What won't happen in an independent Scotland will be getting dragged into illegal wars, having Trident nuclear weapons dumped on the Clyde for another 50 years".
More top news
Noel Edmonds beat off competition from Ant and Dec to be voted Britain's favourite children's TV presenter.
A number of teenagers - including some who have never smoked - are experimenting with e-cigarettes, a study has found.
Singer Lil' Chris - who was found dead last week - suffered with depression and mental health issues for years, his family said.