EURACTIV.com Est. 2min 31-01-2013 (updated: 01-02-2013 ) Bad weather London.jpg Euractiv is part of the Trust Project >>> Languages: FrançaisPrint Email Facebook X LinkedIn WhatsApp Telegram Politicians from across the political spectrum have joined forces to campaign for Britain to stay in the European Union after Prime Minister David Cameron announced plans to hold a referendum on the country's membership. Cabinet ministers Kenneth Clarke (Conservative Party) and Danny Alexander (Liberal Democrats) along with former minister Peter Mandelson (Labour) launched the group, called British Influence, on Wednesday (30 January). The group said in a statement, quoted by AFP, that it was "assembling an army of supporters to fight Europhobia and promote a reform and growth agenda that serves the British national interest". Cameron promised on 23 January to offer Britons a simple ‘in/out’ referendum choice on whether to stay in the European Union if he wins the next election, scheduled for 2015. >> Read: Cameron takes gamble with in/out EU referendum pledge The Daily Mail called it “a provocative move”. According to advanced copies of the speeches, Mandelson was due to tell the launch event that groups trying to "destroy" Britain's influence in Europe "have been allowed to get away with murder". Alexander, a junior treasury minister from the Liberal Democrat party which is in coalition with the Conservatives, was to say that Cameron's plan to repatriate significant powers from the EU was "nonsensical." "We can offer a more compelling alternative: a strong UK, influential in Europe and so more influential in the world. Stronger with America and China, because we are at the heart of the EU," he was to say. Clark was due to say that it was "obvious" and "essential" that the EU needs to reform in order for the UK to "compete properly in a fiercely global marketplace". “The real challenge for us as we debate our role in the EU is working out what we should be pushing forward, what we should be leading on within the EU, to make it – and us – a more effective economic and global power,” The Daily Mail quoted from the text of his prepared speech. Read more with Euractiv UK's self-bashing ad plans mocked in social mediaPlease don't come to Britain – it rains and the jobs are scarce and low-paid. This is the message conveyed in a campaign intended at trashing the UK's own image and persuading immigrants from Bulgaria and Romania to stay at home. Subscribe now to our newsletter EU Elections Decoded Email Address * Politics Newsletters Further Reading Press articles AFP: British politicians to launch pro-Europe group Daily Mail: Ken Clarke says Cameron must focus on EU's 'positives' as Lord Mandelson claims eurosceptics are 'getting away with murder' Huffington Post: Ken Clarke Joins Lord Mandelson And Danny Alexander In Pro-EU 'Fightback' EURACTIV Greece: Φιλοευρωπα?κ? συμμαχ?α «στ?νεται» στη Βρεταν?α EURACTIV Germany: Britische Pro-EU-Kampagne gegen Camerons "EU-Lügen"