The prime minister of the UK, David Cameron, has announced that a nationwide referendum will be held on June 23. The UK will vote on whether or not the country will remain within the European Union.

The announcement followed a week after meetings with top officials from the EU regarding a new deal for the UK within the union, which will come into effect immediately if they choose to stay. Cameron believes the new deal will strengthen the UK’s sovereignty within the UN, amid fears from the opposition that the union is holding the country back.

The deal includes the ability to halt migrant welfare payment, in the event of increased demand, for a period of 7 years, and preventing foreign spouses of EU nationals having immediate freedom of movement. Also, safeguards against unwanted EU regulations on Britain’s financial services industry will be implemented, as well as the preservation of the Pound. It also includes a commitment by EU member states to strengthen the internal market, among other changes and regulations.

Boris Johnson, the mayor of London, has insinuated that voting to leave the union will prompt it to make an even better deal for the UK, saying they must vote to leave the EU in order to make it change.

Those in favour of remaining point primarily to the economic benefits of trade within the union, and that leaving would damage the country’s world status. Those against fear the loss of British sovereignty and that the membership fees yield little in return for Britain.