LONDON, Sept 15 (Reuters) - British Prime Minister DavidCameron will make one of his final visits to Scotland later onMonday four days before a historic independence referendum towarn Scots a vote to leave the United Kingdom is a foreverchoice.
With opinion polls suggesting the referendum remains tooclose to call, Cameron, the leader of the England-centric rulingConservative party, is expected to try to appeal to Scots'emotions by likening the four-nation UK to a family.
"There's no going back from this. No re-run. If Scotlandvotes "yes" the UK will split and we will go our separate waysforever," he is expected to say, according to advance extractsgiven to local media by his office.
Cameron is likely to repeat the anti-independence "BetterTogether" campaign's core message: That inside the UK Scotlandcan have the benefits of belonging to a larger more influentialentity while enjoying an ever increasing measure of autonomy.
He will make his intervention, expected during the secondhalf of Monday, after David Beckham, the retired high-profilefootballer, added his name to a petition of English celebritieswho say they want the Scots to stay in the UK.
The celebrity group, "Let's Stay Together", is organising apublic rally on Monday evening in London's Trafalgar Square toappeal to Scots not to break up the United Kingdom.
On Sunday, thousands of independence supporters took to thestreets of Scotland's largest city, Glasgow, as polls showed therival camps running desperately close. (Reporting by Andrew Osborn and Sarah Young; Editing by AndrewOsborn)