The other source of Jhad in Iraq is from Egypt, another "ally". Juan Cole:
The LA Times reported yesterday that nearly half of the detainees in US military custody are Saudis. Not so for the suspected jihadis held by the Iraqis. They have only 9 Saudis. About half of their detainees are **Egyptian**, and a fifth are Sudanese. The Iraqi security services clearly think their biggest problem is jihadi volunteers from the Nile Valley. But the picture emerging from the two sets of detainees is that the publics of the two main US allies in the Middle East, Saudia and Egypt, are the most likely to fall under suspicion of supporting the insurgency.