LONDON - British Prime Minister David Cameron will give his strongest warning this week that he might back Britain leaving the EU unless other European leaders agree to his demands for reform of the bloc, media reported on Saturday.
Cameron is due to outline British demands for renegotiation of its European Union membership terms in a letter to the President of the European Council, Donald Tusk, to be published on Tuesday.
In a speech the same day, he will say that if no deal can be reached, he could back a British exit when an in/out referendum is held before the end of 2017.
"If we can't reach such an agreement, and if Britain's concerns were to be met with a deaf ear, which I do not believe will happen, then we will have to think again about whether this European Union is right for us," Cameron will say, according to the media reports.
"As I have said before - I rule nothing out."