CONFIRMED: US Predicted the Influx of Islamist Mercenaries into Syria Could Lead To ISIS and a 'Caliphate' — Document

ISIS conducting executions. (Screen capture from YouTube video)

"This creates the ideal atmosphere for AQI [al Qaeda Iraq] to return to its old pockets in Mosul and Ramadi, and will provide a renewed momentum under the presumption of unifying the jihad among Sunni Iraq and Syria, and the rest of the Sunnis in the Arab world against what it considers one enemy, the dissenters. ISI could also declare an Islamic state through its union with other terrorist organizations in Iraq and Syria, which will create grave danger in regards to unifying Iraq and the protection of its territory."

Defense Intelligence Agency Report - August, 2012