Obama uses G7 to press Cameron on defence spending

U.S. President Barack Obama told Prime Minister David Cameron he hoped Britain would keep military spending at 2 percent of national output, despite London's need to cut a sizeable budget deficit, a British source said on Sunday. Obama pressed Cameron on the sensitive subject in a bilateral meeting on the sidelines of a summit of the Group of Seven industrial nations in Germany amid concern in the United States that defence spending in its closest ally could be poised to fall below the NATO