Britain's EU opponents join forces with 'Out' campaign group

By Kylie MacLellan DONCASTER, England (Reuters) - Opponents of Britain's membership of the European Union have joined forces to create a group that will lead the 'Out' campaign in an EU referendum due by the end of 2017. Prime Minister David Cameron has promised to renegotiate Britain's ties with the bloc ahead of the vote. The "Out" umbrella campaign, branded 'Leave.EU', has been set up by businessman Arron Banks, a financial backer to Britain's anti-EU UK Independence Party (UKIP).