Gen Wesley Clark: Iraq could be incredibly bountiful

The American army in Iraq has officially ended its war in Iraq with the furling and covering of its military flag at a ceremony in Baghdad.

The 4,000 US troops still in Iraq will complete their withdrawal in the next few days, although some military trainers and private contractors will stay on.

The BBC's Katty Kay was joined from New York by General Wesley Clark, the former NATO Supreme Allied Commander in Europe, to discuss what the future may now hold for Iraq.