G20

Russia's President Vladimir Putin, gestures as he walks past U.S. President Barack Obama, as he takes his place at a group photo outside of the Konstantin Palace in St. Petersburg, Russia .

Ivan Sekretarev/AP

Russia’s President Vladimir Putin gets a laugh as he takes his place at a group photo of G20 leaders outside the Konstantin Palace in St Petersburg, Russia.

Vladimir Putin, Barack Obama...U.S. President Barack Obama, right, reaches out to shake hands with Russia's President Vladimir Putin during arrivals for the G-20 summit at the Konstantin Palace in St. Petersburg, Russia on Thursday, Sept. 5, 2013. The threat of missiles over the Mediterranean is weighing on world leaders meeting on the shores of the Baltic this week, and eclipsing economic battles that usually dominate when the G-20 world economies meet. (AP Photo/Alexander Zemlianichenko)

Alexander Zemlianichenko/AP

US President Barack Obama reaches out to shake hands with Russia’s President Vladimir Putin after arriving for the G20 summit at the Konstantin Palace in St Petersburg, Russia on Thursday. Rifts over a military strike on the Assad regime in Syria is weighing on world leaders meeting on the shores of the Baltic, eclipsing economic battles that usually dominate when the G20 world economies meet. Read more

Russias President Vladimir Putin (R) mee...Russias President Vladimir Putin (R) meets with Chinas President Xi Jinping before the G20 summit on September 5, 2013 in Saint Petersburg. Russia hosts the G20 summit hoping to push forward an agenda to stimulate growth but with world leaders distracted by divisions on the prospect of US-led military action in Syria.    AFP PHOTO / POOL / ALEXANDER NEMENOVALEXANDER NEMENOV/AFP/Getty Images

Alexander Nemenov/AFP

Russia’s President Vladimir Putin meets China’s President Xi Jinping before the G20 summit in St Petersburg. Russia, the summit host, is hoping to push an agenda to stimulate growth, but divisions among world leaders about the prospect of US-led military action in Syria are likely to dominate the meeting. Read more

US President Barack Obama (R) meets King...US President Barack Obama (R) meets King Carl Gustaf of Sweden during a reception at the Royal Palace in Stockholm on September 5, 2013. Obama is in Sweden for a two-day visit before heading to the G20 summit in Russia's Saint Petersburg, where he is expected to rally support for or at least acceptance of moves to punish Syria's President Bashar al-Assad for an alleged deadly gas attack on a Damascus suburb last month.      AFP PHOTO / JEWEL SAMADJEWEL SAMAD/AFP/Getty Images

Jewel Samad/AFP

US President Barack Obama meets King Carl Gustaf of Sweden during a reception at the royal palace in Stockholm. Mr Obama is in Sweden for a two-day visit before heading to the G20 summit in Russia’s Saint Petersburg. Read more