A recent series of airstrikes launched by Russian air forces against the Islamic State in Syria caused the ISIL militants to evacuate their checkpoints in Raqqa and to cancel all public events there.
A source in the Islamic State’s so-called 'capital' told Sputnik on condition of anonymity that Russian airstrikes have caused widespread panic among the Islamist militants who apparently were not expecting such a relentless assault.
"They thought that Russian warplanes would act like their American counterparts – that they would launch some sporadic surgical strikes at dusk and then they would fly away," the source said. "Instead, Russian military aircraft constantly bombard ISIS positions in the vicinity of Raqqa, and these massed strikes have completely paralyzed the Islamist group’s activities. The Russian air operation proved to be extremely effective."