With the theme for the next episode being international issues, here's how I think it'll go, and how I think Clegg has to be more careful in this one.

Afghanistan :- Here we'll be getting a middle of the road line for all parties, a swift withdrawal would be construed as reckless and leaving the Afghanis to the Taliban, whilst looking at it as too permanent occupation is likely to raise cost implication arguments. Phased withdrawal all-round. Expect Cameron to attack Brown again regarding helicopters and equipment, and whilst those two bicker Clegg will come out well.

Iran & North Korea :- This is where I think Clegg could trip himself up a little. If he bangs the anti-trident drum too much he might lose some support, he needs to emphasise the international co-operation side, and that action by all other nations together will be more effective at solving problems than a few nuclear warheads. Expect Brown and Cameron to argue over the small details whilst both supporting keeping trident because we need the deterrent, whether it makes lesser nations to aspire to being nuclear powers or not.

Europe and US :- Not sure if the tories are as anti-europe as they used to be, but I'm sure Cameron will attack regarding the amendments to the European constitution which were passed through without referendum, whilst Clegg and Brown posture whilst maintaining the status quo. As for the US, they'll all want to maintain the special relationship without excluding the rest of the world.

I think Brown is going to get hammered in this one, there's been too many mistakes internationally in the last 13 years for him to come out on top. I'd say Cameron's the value bet but Clegg a strong favourite again.