Obama's European Adventure

In an address to the British Parliament, the president called for a "new era of cooperation" after he and David Cameron vowed new pressure against Libya. Plus, photos of his European adventure.

Matt Dunham, WPA Pool / Getty Images

Matt Dunham, WPA Pool / Getty Images

British Prime Minister David Cameron and President Obama serve food to a member of the military during a barbecue in the garden of 10 Downing Street on May 25, 2011 in London.

Matt Dunham, WPA Pool / Getty Images

Michelle Obama and Samantha Cameron serve food during a barbecue in the garden of 10 Downing Street in London, Wednesday, May 25, 2011.

Jeff J Mitchell, Pool / AP Photo

U.S. President, Barack Obama addresses the members of both houses of the the British Parliament in Westminster Hall London, on Wednesday May 25, 2011.

Carolyn Kaster / AP Photo

President Barack Obama, escorted by John Bercow, left, Speaker of the House of Commons, and Helen Hayman, Lord Speaker of the House of Lords, walks into Westminster Hall to address members of both Houses of Parliament in London, on Wednesday, May 25, 2011.

PA / Landov

Deputy Prime Minister Nick Clegg talks to President Obama as Prime Minister Cameron looks on at 10 Downing Street, London.

Larry Downing, Pool / AP Photo

President Obama, first lady Michelle Obama, Queen Elizabeth II, and Prince Philip pose for photographers prior to a dinner hosted by the queen, May 24, 2011, at Buckingham Palace in London.

Lewis Whyld, WPA Pool / Getty Images

Camilla, Duchess of Cornwall, President Obama, Queen Elizabeth II and Prince Philip, Duke of Edinburgh during a State Banquet in Buckingham Palace on May 24, 2011.

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President Obama and Queen Elizabeth II during a State Banquet in Buckingham Palace on May 24, 2011 in London, England.

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President Obama and wife Michelle pose with Britain's Prime Minister David Cameron and wife Samantha outside 10 Downing Street.

Clockwise from top left: Charles Dharapak / AP Photo; Paul Hackett, Pool

President Obama and David Cameron play table tennis with students during a visit to the Globe Academy in London on May 24, 2011.

John Stillwell, PA / AP Photo

President Obama and his wife stand next to the Grave of the Unknown Warrior after laying a wreath during a tour of Westminster Abbey, in central London, as part of his three-day state visit to the U.K., on May 24, 2011.

Rex Features / AP Photo

Perhaps he drank one too many pints of Guinness in Ireland? Before leaving a stop at Westminster Abbey today during his state trip to the U.K., President Obama wrote in the guest book and signed his note, “May 24, 2008.” A witness swears it was Obama who wrote the note, and even said he was overheard asking the dean the date.

Dominic Lipinski, PA / AP Photo

Obama walks with the Dean of Westminster, Dr, John Hall, during a tour of Westminster Abbey, as part of his three-day state visit to the U.K. on May 24, 2011.

Carolyn Kaster / AP Photo

Michelle Obama shakes hands with members of The Choir of Westminster Abbey during a visit with her husband to Westminster Abbey in London, May 24, 2011.

Olivia Harris, Reuters / Landov

The Obama's limo arrives at Buckingham Palace in London May 24, 2011.

Toby Melville, Pool / AP Photo

The Obamas are greeted by Britain's Queen Elizabeth, second right, and Prince Philip as they arrive at Buckingham Palace in London May 24, 2011.

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The Obamas attend a ceremonial welcome by Queen Elizabeth II and the Duke of Edinburgh in the garden of Buckingham Palace as part of the the president's state visit to the UK and Ireland.

Simon Dawson, Bloomberg / Getty Images

Britain's Queen Elizabeth II, President Obama, Camilla, Duchess of Cornwall, Prince Charles, First Lady Michelle Obama, and Prince Philip stand together, during their ceremonial welcome at Buckingham Palace in London on May 24, 2011.

Simon Dawson, Bloomberg / Getty Images

Britain's Queen Elizabeth II, President Obama, Camilla, Duchess of Cornwall, Prince Charles, First Lady Michelle Obama, and Prince Philip amid the wind.

Toby Melville, Pool / Getty Images

Britain's Queen Elizabeth II, President Obama, Prince Philip, the Duke of Edinburgh and First Lady Michelle Obama stand as they listen to the U.S. national anthem during a visit at Buckingham Palace on May 24, 2011.

Christopher Furlong / Getty Images

Obama inspects the honor guard during a ceremonial welcome in the garden of Buckingham Palace on May 24, 2011.

Toby Melville, Pool / Getty Images

The Obamas meet with Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge at Buckingham Palace on May 24, 2011 in London.

Jewel Samad, AFP / Getty Images

The Obamas disembark from Air Force One at the Stansted airport in Essex, on May 23, 2011.

Press Association / AP Photo

Crowds gather for Obama's speech in College Green, Dublin.

Rex Features / AP Photo

Obama and Michelle enjoy a pint of Guinness in Hayes Bar in his ancestral home of Moneygall.

Irish Government / Getty Images

President Obama holds a hurley after it was given to him by Irish Prime Minister Taoiseach Enda Kenny at Farmleigh in Dublin, Ireland.

Rex Features / AP Photo

President Obama, President of Ireland Mary McAleese, Dr. Martin McAleese and First Lady Michelle Obama are seen outside the Aras an Uachtarain.

Irish Government / Getty Images

President Obama and Irish President Mary McAleese speak while walking through the Francini corridor in Aras an Uachtarain, the official residence of the president of Ireland.

Carolyn Kaster / AP Photo

From left, U.S. Ambassador Daniel M. Rooney and his wife Patricia Rooney, President Obama, President of Ireland Mary McAleese and her husband Martin McAleese, and First Lady Michelle Obama look to the media as the Obamas arrive at the presidential residence in Dublin, Ireland on May 23, 2011.