David Cameron at the G8 and G20 in Canada

24 June 2010: The prime minister, David Cameron, arrives in Toronto, Canada, to attend the G8 and the G20 meetings Photograph: Facundo Arrizabalaga/AP Photograph: Facundo Arrizabalaga/guardian.co.uk 25 June 2010: Heads of state and world leaders walk to the G8 family photo at the Deerhurst resort at Muskoka, in Huntsville, Ontario Photograph: Saul Loeb/AFP/Getty Images Photograph: Saul Loeb/guardian.co.uk 25 June 2010: Prime ministers and heads of state take their positions for a group photo at the Deerhurst resort Photograph: Sipa Press /Rex Features Photograph: Sipa Press /guardian.co.uk 25 June 2010: President Barack Obama jokes with the French president, Nicolas Sarkozy, Canada's prime minister, Stephen Harper, Russia's president, Dmitry Medvedev, Germany's chancellor, Angela Merkel and the prime minister, David Cameron, after the G8 leaders posed for a group photo Photograph: Sipa Press/Rex Features Photograph: Sipa Press/guardian.co.uk 25 June 2010: David Cameron adds a few paint strokes to a painting at the G8 Photograph: Canadian Press/Rex Features Photograph: Canadian Press/guardian.co.uk 25 June 2010: Cameron holds talks with the Russian President, Dimitri Medvedev, at the G8 at the Deerhurst resort, Ontario Photograph: Facundo Arrizabalaga/PA Photograph: Facundo Arrizabalaga/guardian.co.uk 26 June 2010: President Barack Obama and the prime minister, David Cameron, walk in the rain after stepping off Marine One helicopter upon arrival in Toronto for the G20 Photograph: Charles Dharapak/AP Photograph: Charles Dharapak/guardian.co.uk 26 June 2010: David Cameron meets with the Chinese President, Hu Jintao, during a bilateral meeting Photograph: Stefan Rousseau/PA Photograph: Stefan Rousseau/guardian.co.uk 26 June 2010: President Barack Obama and David Cameron shake hands at the end of their bilateral meeting at the G20 in Toronto Photograph: Jason Reed/Reuters Photograph: Jason Reed/guardian.co.uk The prime minister, David Cameron, and the German chancellor, Angela Merkel, share a word during a G8 working session with other world leaders Photograph: Guido Bergmann/AP Photograph: Guido Bergmann/guardian.co.uk 27 June 2010: David Cameron and Angela Merkel watch the World Cup football match between England and Germany at the G20 Toronto Photograph: Stefan Rousseau/AP Photograph: Stefan Rousseau/guardian.co.uk 27 June 2010: David Cameron reacts as he watches the World Cup football match between England and Germany at the G20 Photograph: Stefan Rousseau/AP Photograph: Stefan Rousseau/guardian.co.uk 27 June 2010: David Cameron attends the opening plenary session of the G20 Photograph: Saul Loeb/Reuters Photograph: Saul Loeb/guardian.co.uk 27 June 2010: David Cameron leads out the G20 leaders to pose for a group photo on the last day of the G20 Photograph: Stefan Rousseau/PA Photograph: Stefan Rousseau/guardian.co.uk 27 June 2010: World leaders pose for a group photo during the G20 Photograph: Scott Olson/Getty Images Photograph: Scott Olson/guardian.co.uk 27 June 2010: David Cameron holds a news conference on the last day of the G20 Photograph: Stefan Rousseau/PA Photograph: Stefan Rousseau/guardian.co.uk