At G20, Obama vows renewed effort to eliminate Islamic State

By Matt Spetalnick and David Dolan BELEK, Turkey (Reuters) - U.S. President Barack Obama vowed on Sunday to step up efforts to eliminate Islamic State in Syria and prevent it from carrying out attacks like those in Paris, while European leaders urged Russia to focus its military efforts on the radical Islamists. Speaking at a G20 leaders summit in Turkey, Obama described the killings in Paris claimed by Islamic State as an attack on the civilized world and said the United States would work with