File images of Britain's government buildings Marred by two terror attacks during the campaign, Britain's snap general election is set to go ahead on Thursday and will decide who shapes the United Kingdom's future as it leaves the European Union. Conservative Prime Minister Theresa May, who came to power without a national vote last year after David Cameron's resignation, called the election three years early after just one year in charge. FILE IMAGES OF GOVERNMENT BUILDINGS (Parliament, Downing Street, Whitehall)