Obama vows effort to eliminate Islamic State as G20 seeks common Syria strategy

By Matt Spetalnick and Jan Strupczewski 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