Arguments for and against UK membership of EU
David Cameron has travelled to Brussels hoping to persuade other European leaders to back his plans for reforming Britain's relationship with the other 27 EU countries.
It comes ahead of a referendum in which voters in Britain will decide to stay or leave the EU. That vote is expected to happen some time next year.
So what are the benefits of staying or leaving?
UKIP's Suzanne Evans and Labour MP Alan Johnson have set out their opposing views for the Victoria Derbyshire programme.
Mr Johnson, is fronting Labour's campaign to stay in the EU whereas Ms Evans believes it's time for the UK to leave the EU.
17 Dec 2015