[RACooper]

Both Princes could technically go - but both would have to have permission from the Queen... I can see Harry might have a chance (he has formally requested it according to the reports I have seen), but William as a potential heir has less of a chance.

Of course if the both went, William would be at the HQ as per his role in the regiment... while Harry might actually be on the front-lines so to speak being a Recce officer and all.

Now from a official point of view it would be advantageous for either or both to do a tour -1. it looks good on the Royals; 2. good for moral of the Army; 3. a finally it assures that William/Harry would be allowed to head some of the ceremonial orders and wear some medals that Charles can't (Queen can cause she served as a war-time nurse during the Blitz).

A final point - they might not serve in Iraq simply because the UK is pulling out... however Afghanistan is a distinct possibility given the UK troop's role there.