Cumbre del G20 en Brisbane
Australian Prime Minister Tony Abbott (L) reacts as he shakes hands with French President Francois Hollande while officially welcoming leaders to the G20 summit in Brisbane November 15, 2014. A showdown between Western leaders and Russian President Vladimir Putin is likely at the G20 summit in Australia starting on Saturday, following fresh reports of Russian troops pouring into eastern Ukraine. REUTERS/David Gray (AUSTRALIA - Tags: POLITICS)
Leaders meet at the first plenary session at the G20 summit in Brisbane on November 15, 2014. Australia is hosting the leaders of the world's 20 biggest economies for the G20 summit in Brisbane on November 15 and 16. AFP PHOTO / POOL / Kevin Lamarque
Australia's Prime Minister Tony Abbott (L) offically welcomes Britain's Prime Minister David Cameron (R) to the G20 Leaders' Summit in Brisbane on November 15, 2014. Australia is hosting the leaders of the world's 20 biggest economies for the G20 summit in Brisbane on November 15 and 16. AFP PHOTO/William West