US soldiers leave Iraq crossing the border to Kuwait

Scientists show UN Secretary General Ban Ki Moon ice measuring equipment during visit to Arctic Circle; 2 September 2009

Pope Benedict XVI arrives at Edinburgh airport for four day Papal visit to the United Kingdom

African Union (AU) peacekeeping force patrol North Darfur in jeep, Sudan; 02 Oct 06

Protest in Bahrain following the killing of a 15 years old shia boy by police

Former child Taliban soldier with his face covered, 3 August 2009

Pan left over people carrying flaming torches around the replica viking galley for the Up Helly Aa festival

Presidents Asif Ali Zardari, Hamid Karzai and Mahmoud Ahmadinejad shake hands at a Pakistan, Afghanistan, Iran summit, 16-17 February 2012

Indian anti-corruption activist Anna Hazare makes a speech in front of a young audience, India, August 2011

Young Tamil protester holding placard and pleas for end of war during anti government demonstrations; London; 11 June 2009

Zoom in to banner of Iranian President Mahmoud Ahmadinejad during presidential elections; 15 June 2009

Female Afghan police officers receiving fire arms training from British troops; 11 September 2009

Rioters stamping on objects in the street during period of rioting in London, August 2011

Prince William talks candidly about his desire to serve in Royal Forces during training session, RAF Shawbury; 18 June 2009

Bill and Chelsea Clinton applaud US Senator Hillary Clinton making victory speech in New Hampshire primary election, New England; 7 January 2008

Aerial shot of rioters emptying a truck during riots in London, August 2011

Firefighter dousing smouldering ruins of a burnt building following the riots in various UK cities, August 2011

First Lady Michelle Obama delivers inspirational speech to female pupils during surprise visit to Elizabeth Garrett Anderson Language School whilst on first European trip, London; 2 April 2009

Fire rages and plumes of smoke pollute atmosphere following explosion at Buncefield oil depot, Hertfordshire; Dec 05

President Obama, President Abbas and Prime Minister Netanyahu shake hands following Middle East negotiations meeting, New York; 22 September 2009

Prime Minister Gordon Brown and President Barack Obama enter press conference ahead of G20 Summit, London, 1 April 2009

People marching through street with flags to celebrate 60 years of independence for Calcutta

Prime Minister Tony Blair and Lord Sebastain Coe sign the 2012 olympic flag outside Number 10 Downing Street

Track left past protestors at anti-government demonstrations, Thailand; 14 March 2010

Deputy Prime Minister Nick Clegg makes statement to the press regarding the proposed rise in university tuition fees on the day the House of Commons vote on tuition fees