LONDON: Britain has voted to leave the European Union, results from Thursday's landmark referendum showed, an outcome that sets the country on an uncertain path and deals the largest setback to European efforts to forge greater unity since World War Two.
World financial markets dived as nearly complete results showed a 51.8/48.2 percent split for leaving. Sterling suffered its biggest one-day fall of more than 10 percent against the dollar, hitting a 31-year low on market fears the decision will hit investment in the world's 5th largest economy.
The vote will initiate at least two years of messy divorce proceedings with the EU, raise questions over London's role as a global financial capital and put huge pressure on Prime Minister David Cameron to resign, though he pledged during the campaign to stay on whatever the result.
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The euro slumped more than 3 per cent against the dollar on concerns a Brexit vote will do wider economic and political damage to what will become a 27-member union. Investors poured into safe-haven assets including gold, and the yen surged. European shares were on course to open 6 to 7.5 percent lower.
There was no immediate comment from the Bank of England. Global policymakers prepared for action to stabilize markets, with Japanese Finance Minister Taro Aso promising to "respond as needed" in the currency market.
Yet there was euphoria among Britain's eurosceptic forces, claiming a victory they styled as a protest against British political leaders, big business and foreign leaders including Barack Obama who had urged Britain to stay in the bloc.
"Dare to dream that the dawn is breaking on an independent United Kingdom," said Nigel Farage, leader of the eurosceptic UK Independence Party.
"If the predictions are right, this will be a victory for real people, a victory for ordinary people, a victory for decent people ... Let June 23 go down in our history as our independence day."
He called the EU a "doomed project".
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By 5.41 a.m. (0441 GMT), 93 percent of the vote had been counted, making Leave's lead impossible to reverse.
Asked if Cameron, who called the referendum in 2013 and campaigned to stay in the bloc, should resign if Britain voted for Brexit, Farage said: "Immediately."
An aide working in Cameron's office told reporters: "We're in uncharted territory... Everyone's just really tired. They haven't slept."
The United Kingdom itself now faces a threat to its survival, as Scotland voted 62 percent in favor of staying in the EU and is likely to press for a new referendum on whether to become independent after its 2014 vote to stay in the UK.
Scottish First Minister Nicola Sturgeon said Thursday's vote "makes clear that the people of Scotland see their future as part of the European Union."
Northern Ireland's largest Irish nationalist party, Sinn Fein, said the result intensified the case for a vote on whether to quit the United Kingdom.
European politicians reacted with shock. "Please tell me I'm still sleeping and this is all just a bad nightmare!" former Finnish Prime Minister Alexander Stubb tweeted.
Quitting the EU could cost Britain access to the EU's trade barrier-free single market and mean it must seek new trade accords with countries around the world. President Barack Obama says it would be at the "back of a queue" for a U.S. pact.
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The EU for its part will emerge economically and politically weakened, facing the departure not only of its most free-market proponent but also a member country that wields a U.N. Security Council veto and runs a powerful army. In one go, the bloc will lose around a sixth of its total economic output.
Cameron is expected to formally report the result to his European counterparts within days and prepare negotiations for the first exit by a member state from the EU -- an exit he has said would be irreversible.
The British leader called the referendum in 2013 in a bid to head off pressure from local eurosceptics, including within his own party. Initially billed as an easy ride, the vote has now put his political future on the line. Party ally Boris Johnson, the former London mayor who became the most recognizable face of the "leave" camp, is now widely tipped to seek his job.
Opinion polls had see-sawed throughout an acrimonious four-month campaign, but the Remain camp edged ahead last week after a pro-EU member of parliament, Jo Cox, was shot and stabbed to death by a man shouting "Britain first". The attack shocked Britons and raised questions about whether the tone of the debate was fuelling intolerance and hatred.
In the end though, the pro-EU camp was powerless to stop a tide of anti-establishment feeling and disenchantment with a Europe that many Britons see as remote, bureaucratic and mired in permanent crises.
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Britain, which joined the then European Economic Community (EEC) in 1973, has always been an ambivalent member. A firm supporter of free trade, tearing down internal economic barriers and expanding the EU to take in ex-communist eastern states, it opted out of joining the euro single currency or the Schengen border-free zone.
Cameron’s ruling Conservatives in particular have risked being torn apart by a slow by steady rise in euroscepticism ever since differences over Europe triggered the ousting of former Prime Minister Margaret Thatcher in 1990.
World leaders including Obama, Chinese President Xi Jinping, German Chancellor Angela Merkel, NATO and Commonwealth governments had all urged a "Remain” vote, saying Britain would be stronger and more influential in the EU than outside.
Yet the four-month campaign has been among the divisive ever waged in Britain, with accusations of lying and scare-mongering on both sides and rows on immigration which critics said at times unleashed overt racism.
It also revealed deeper splits in British society, with the pro-Brexit side drawing support from millions of voters who felt left behind by globalization and believed they saw no benefits from Britain's ethnic diversity and free-market economy.
Concerns over uncontrolled immigration, loss of sovereignty, remote rule from Brussels and a protest vote from working class northern voters appear to have trumped almost unanimous warnings of the economic perils of going it alone.
"People are concerned about how they have been treated with austerity and how their wages have been frozen for about seven years," said John McDonnell, finance spokesman for the opposition Labour Party, which had favored a Remain vote.
"A lots of people's grievances have come out and we have got to start listening to them."
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Surveys on public attitudes across the EU have for years shown growing disenchantment with European integration, a project that began in the 1950s as a common market for steel and coal but which over the years offered members the chance to join up to a single currency and do away with old national borders.
Yet while it has become a feature of everyday life seen in everything from EU-sponsored student exchanges to rules on mobile telephone roaming charges, the EU lost public support over its handling of the 2009 sovereign debt crisis that inflicted painful austerity on much of the south of the continent and left many citizens in northern countries resentful at having to fund bailouts.
Right-wing British eurosceptics seized on the euro zone crisis to argue that Britain was “shackled to a corpse”.
Aside from Denmark-ruled Greenland, which left the EEC in 1985 after a row over fishing rights, Britain is the first country to leave the EU, and even EU officials say it takes the continent into uncharted territory.
EU affairs ministers and ambassadors from member states gather in Luxembourg by 10 a.m. (0800 GMT) for routine talks that will provide the first chance for many to react. A regular EU summit has been pushed back to next Tuesday and Wednesday, when Cameron may trigger Article 50 of the EU's treaty, the legal basis for a country to leave, setting in motion two years of divorce negotiations.
Even less clear at this stage is what sort of relationship Britain will seek to negotiate with the EU once it has left.
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To retain access to the single market, vital for its giant financial services sector, London would have to adopt all EU regulation without having a say in its shaping, and pay a substantial contribution to Brussels coffers for market access, as Norway and Switzerland do. EU officials have said UK-based banks and financial companies would lose automatic “passport” access to sell services across Europe if Britain ceased to apply the EU principles of free movement of goods, capital, services and people.
Aside from trade, huge questions now face the millions of British expatriates who live freely elsewhere in the bloc and enjoy equal access to health and other benefits, as well as some 2 million EU citizens who live and work in Britain.
Core founding members of the EU such as France and Germany will be wary of making life too easy for Britain for fear of encouraging eurosceptics across the continent to call for referendums in their countries.
French Economy Minister Emmanuel Macron said last weekend that "when you're out, you're out", insisting Britain could expect no preferential treatment. German Finance Minister Wolfgang Schaeuble has issued similar warnings.
Both countries, whose painful post-war reconciliation formed the basis for the future union of Europe, must now deal with buoyant anti-EU parties at home, with the Alternative fuer Deutschland in Germany and the Front National in France.
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