A defeat for ISIS in Iraq will be defeat for ISIS in Syria.

There's a lot of expectation in the Middle East that post-Obama there will be a sort of tougher U.S. line on Assad, there will be more intervention and so forth. But I don't know if that's going to be fulfilled. If there is more intervention, then I think it's going to go the same way as these other interventions that we've seen in Iraq, we've seen, to a degree, in Syria, we've seen in Libya, you know, that they do really badly. They make bad situations worse.

Mosul stands rally at a sort of juncture of sectarian and ethnic differences.

Everything that happens in Iraq affects countries outside.

There are some things that could hold it together, notably oil revenues. But at the moment, the much vaunted surge has had a measure of success primarily, to my mind, because Sunni and Shia Iraqis hate and fear each other more these days than they hate and fear the Americans.

Turkey is saying that it wants to preserve Sunni dominance in Mosul. Obviously, there, the Kurds, the Shia, the Iraqi government have their own agendas.

Muqtada is radical in the sense that he wants the U.S. occupation to end and has always said so from the beginning. Secondly, his support among the Shia really runs along class lines; it's mainly the poor who support him. His organization runs an enormous social network.