Britain's Brexit Battle

Britain's Prime Minister David Cameron speaks outside 10 Downing Street, London as his wife Samantha looks on. Cameron says he will resign by the time of party conference in the fall after Britain voted to leave the European Union after a bitterly divisive referendum campaign, according to tallies of official results Friday.

Nigel Farage, the leader of the UK Independence Party speaks to the media on College Green with the Houses of Parliament in the background in London. Britain voted to leave the European Union after a bitterly divisive referendum campaign, according to tallies of official results Friday.

A jogger runs across Westminster bridge with the Houses of Parliament in the background in London.  Britain entered uncharted waters Friday after the country voted to leave the European Union, according to a projection by all main U.K. broadcasters.

Nigel Farage, the leader of the UK Independence Party, celebrates as he leaves a "Leave.EU" organization party for the British European Union membership referendum in London.

Nigel Farage, the leader of the UK Independence Party, celebrates and poses for photographers as he leaves a "Leave.EU" organization party for the British European Union membership referendum in London.

Votes are sorted as ballots are counted during the EU Referendum count for Westminster and the City of London at the Lindley Hall.

Japanese Finance Minister Taro Aso speaks to the media at his ministry in Tokyo. Finance Minister Aso said he is “extremely concerned” about the impact and risks of Britain’s exit from the European Union on global financial markets.

Supporters of the Stronger In campaign react after hearing results in the EU referendum at London's Royal Festival Hall. 

A man looks down at flowers displayed in the words 'Please Stay' in front of the UK representation to the EU office in Brussels. Voters in the United Kingdom voted in a referendum on Thursday to decide whether Britain remains part of the European Union or leaves the 28-nation bloc. 

Supporters of the Stronger In campaign react after hearing results in the EU referendum at London's Royal Festival Hall. On Thursday, Britain voted in a national referendum on whether to stay inside the EU.