The US and UK are bystanders in an ungodly struggle between two denominations of the same religion that have been killing each other longer that America has been known by the west. It's not them against us, it's them against them, with our forces stuck in the middle of a fight between peoples who agree on one thing - if you can't convert an infidel you can kill him.
What a lot of nonsense. The continued occupation of Iraq (and that is most certainly the intention with the construction of permanent military bases, not to mention the largest embassy in the world in Bagdad) could not continue without a disunited populace. It is the precondition for occupation - not the reason for it. And the oldest imperialist trick in the book.
It would be naieve to believe that various black operations have not been carried out as provocations to forment this situation. Who is to say that Israeli intelligence has not had its hand in this as well ?
In Lebenon, there is strong evidence that the US has been involved in supporting certain Sunni groups close to Al Qaida supposedly as a counter to Hezbollah. Divide and rule is written all over US policy and tactics in the middle east. Seymour Hersh is reporting that some $400M has been allocated to various operations inside Iran. The principle aim is obviously to promote ethnic divisions.
The US intends to stay in Iraq "forever". To stay there it needs factionalised and fragmented politics and no genuine nationalist Iraqi leader to emerge with the support of a majority of the population. Who gains most from sectarianism ?