The Resilience of Moderate Syrian Rebels
 Felix Legrand"The best strategy to defeat ISIS in Syria was successfully tested in Idlib 
province and Aleppo city in early 2014. Sunni-led moderate groups supported by the local population managed to remove ISIS from these areas. Their success was largely due the fact that they are solidly embedded in the local communities. 
The most dangerous strategy for defeating ISIS in Syria would be to rely on the Syrian regime and their allied Shia militias to fight ISIS. This would stoke the flames of sectarianism and play into the hands of ISIS, increasing their recruitment capacity and zealousness."