However, referendum is not an obligatory one from legal point of view, and it means that the government may seal country's fate on its own.
Leaders of the Northern Ireland nationalist party Sinn Féin claimed that British exit from the EU is an excuse for Ireland's unification, as the English government will be deprived of power to represent interests of the Northern Ireland residents.
David Cameron, PM of the country, who initiated this referendum and supported proposal to remain within the EU, could not ignore opinion of the British and claimed about his resign.
“In summer, a monster began to wake up in me, really. I started hating everyone. I always hated everyone and started hating even more,” he said