Britain's former prime minister David Cameron leaves Downing Street in London on Monday. James Manning/AP hide caption
British Prime Minister David Cameron
British Chancellor of the Exchequer George Osborne, the United Kingdom's head financial official, leaves after making a statement at the Treasury in London on Monday. Stefan Rousseau/AFP/Getty Images hide caption
Britain's Prime Minister David Cameron, accompanied by his wife, Samantha, speaks to the media in front of 10 Downing St. on Friday as he announces his resignation following Britain's vote to leave the EU. Alastair Grant/AP hide caption
Seagulls in Cornwall, England, have allegedly attacked people and family pets. Matt Cardy/Getty Images hide caption
The Bank of England in London in a photograph taken in March. The central bank inadvertently revealed that it was planning for a possible withdrawal of the U.K. from the European Union. Suzanne Plunkett/Reuters/Landov hide caption
British Prime Minister David Cameron delivers a speech on April 12, 2015 in Cheltenham, England. Britain goes to the polls in a general election on May 7. But campaign slogans and speeches — from Cameron and his rivals — won't carry many references to international affairs. WPA Pool/Getty Images hide caption
Britain Backs Away From World Stage In Lead-Up To Elections
A fox runs past the door of No. 10 Downing St. in London on Monday. Justin Tallis/AFP/Getty Images hide caption
British Prime Minister David Cameron addresses the Houses of Parliament on Friday. He urged MPs to authorize the U.K.'s participation in anti-ISIS airstrikes. PA/EPA/Landov hide caption
Dejected "yes" supporters sit in George Square, Glasgow, Scotland, on Friday. Scots voted decisively against independence from the U.K. Robert Perry/EPA/Landov hide caption
A man played bagpipes on a "short walk to freedom" march in Edinburgh, Scotland, on Thursday as polling in the independence referendum began. Paul Hackett/Reuters/Landov hide caption
French President Francois Hollande (right) and Iraqi President Fuad Masum attend the Conference for Peace and Security in Iraq at the Ministry of Foreign Affairs in Paris on Monday. The two leaders were among those urging quick action against Islamic State militants. David Silpa/UPI/Landov hide caption
British Prime Minister David Cameron told the House of Commons on Monday that he wants to give police the power to seize the passports of Islamist fighters bound for Iraq and Syria. PA Photos /Landov hide caption
Britain's Prime Minister David Cameron speaks at a news conference in London on Friday after the U.K. raised its terror alert level. Paul Hackett/PA Photos/Landov hide caption
A letter from British Prime Minister David Cameron (left) states that "the Government has not banned prisoners' access to books." Stefan Rousseau/AP hide caption
On the sidelines of the EU summit in Brussels, U.K. Prime Minister David Cameron said the choice of Jean-Claude Juncker to head the European Commission marks "a bad day for Europe." John Thys/AFP/Getty Images hide caption
President Obama and British Prime Minister David Cameron in the Oval Office of the White House on Monday. Jim Watson/AFP/Getty Images hide caption
British Prime Minister David Cameron earlier today in London as he spoke about a vote on E.U. membership. Oli Scarff/Getty Images hide caption
British Prime Minister David Cameron in London last month. Peter Macdiarmid/Getty Images hide caption
The Obamas and Camerons at the White House before a state dinner for the British prime minister. Susan Walsh/AP hide caption
President Obama and British Prime Minister David Cameron during their news conference this afternoon in the Rose Garden of the White House. Chip Somodevilla/Getty Images hide caption
This file picture taken on October 18, 2010, shows British Defense Secretary, Liam Fox, leaving after attending a cabinet meeting at 10 Downing Street.
Carl Court/AFP/Getty Images hide captionBritish Prime Minister David Cameron, center, and French President Nicholas Sarkozy, second right, visited with patients at the Tripoli Medical Center today (Sept. 15, 2011). Stefan Rousseau/AP hide caption