The Economist, 13 Jan 07: The President's Last Throw
...The critical terrain is Baghdad: Iraq's most populous city, with 6m inhabitants of all sects (see map). It is both a main target for insurgents attacking coalition forces, and the centre of the sectarian war that has broken out since Sunni extremists blew up the Golden Mosque in Samarra, a Shia holy place, in February 2006....