US President Barack Obama (L) holds a bilateral meeting with Russian President Vladimir Putin during the G8 summit at the Lough Erne resort near Enniskillen in Northern Ireland, on June 17, 2013. The conflict in Syria was set to dominate the G8 summit starting in Northern Ireland on Monday, with Western leaders upping pressure on Russia to back away from its support for President Bashar al-Assad. AFP PHOTO / JEWEL SAMAD (Photo credit should read JEWEL SAMAD/AFP/Getty Images)