US aides 'doubt Obama's Afghan strategy'

President Barack Obama’s top advisers spent much of the past 20 months arguing about policy and turf, according to a new book, with some top members of his national security team doubting the president’s strategy in Afghanistan would work.

The book, “Obama’s Wars”, by journalist Bob Woodward, says Obama aides were deeply divided over the war in Afghanistan even as the president agreed to triple troop levels there. Obama’s top White House adviser on Afghanistan and his special envoy for the region are described as believing the strategy will not work.