British Prime Minister David Cameron told European Union leaders Thursday he needs a new deal to keep Britain as a member, opening a struggle over the bloc's future at a summit preoccupied with keeping Greece from crashing out.
Freshly re-elected last month, Cameron faces difficult negotiations if he is to persuade other EU members to accept new terms for the United Kingdom before a referendum by the end of 2017 on whether Britain will stay or go.
Cameron, who leads a Conservative Party divided for decades over Europe, says he supports remaining in a reformed EU, but would not be heartbroken to leave.
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