What was the effect of the Syrian state's retraction from control over all of its territory?

Question

Quizplus · Accepted Answer

The retraction of control over all of its territory by the Syrian state created a power vacuum that resulted in the rise of the Islamic State of Iraq and Syria. The lack of central governance allowed groups like ISIS to gain control and establish a presence in the region. There was no creation of a Sunni-Shia treaty, expansion of U.S. forces, or an invasion by neighboring Iraqi forces.

What Was the Effect of the Syrian State's Retraction from Control