As exposed by Pulitzer Prize-winning journalist Seymour Hersh in his 2007 article, “The Redirection: Is the Administration’s new policy benefiting our enemies in the war on terrorism?” it was stated explicitly that (emphasis added):
To undermine Iran, which is predominantly Shiite, the Bush Administration has decided, in effect, to reconfigure its priorities in the Middle East. In Lebanon, the Administration has coöperated with Saudi Arabia’s government, which is Sunni, in clandestine operations that are intended to weaken Hezbollah, the Shiite organization that is backed by Iran. The U.S. has also taken part in clandestine operations aimed at Iran and its ally Syria. A by-product of these activities has been the bolstering of Sunni extremist groups that espouse a militant vision of Islam and are hostile to America and sympathetic to Al Qaeda.
To this day, the US, its NATO partners including Turkey, and regional partners including Israel, Saudi Arabia, and Qatar are arming, funding, harboring, training, and otherwise perpetuating these “Islamic extremists” within and along both Syria and now Iraq’s borders.