MOSCOW (Sputnik) — Cameron pledged in the election campaign that led to his Conservative Party's victory in the May 2015 parliamentary elections to hold a nationwide in/out referendum on the United Kingdom's membership of the European Union by the end of 2017.
Cameron first intends to renegotiate EU-UK relations before the vote.
"I am quite sure that we will have a deal, not a compromise, a solution. Not a weak compromise, a permanent solution [regarding British demands] in February," Juncker said.
In December, European Council President Donald Tusk said that EU leaders were expected to work with the UK leadership to reach a compromise on the issue of the bloc's reforms UK Prime Minister David Cameron proposed before the upcoming referendum on Britain's membership in the European Union.