Debate over future of United Kingdom as referendum looms
Prime Minister David Cameron has been invoking the notion that the UK should be "pulling together, not pulling apart".
In a speech to Scottish Conservatives, he reflected that UK history "has always been one of shared endeavour".
But for how much longer? Next year the referendum on independence will decide if Scotland remains part of the union.
Vaughan Roderick asked Welsh Conservative leader Andrew RT Davies and Scottish National Party MP Pete Wishart how strong they thought the case was for retaining the political union of the United Kingdom.