Ivan Watson reports on the “final battle” in northern Syria

CNN’s Ivan Watson (@ivancnn) reports from northern Syria on what rebels are referring to as the “final battle.” For weeks the government-controlled Mannagh airbase has been under siege as rebels believe capturing it will help liberate the north.

“If the regime has even a 1% chance of taking back this region, this is a base that they would then want to rule from,” said Abu Marwan, commander of the rebel Northern Storm brigade. “Once it has been captured, the north will be liberated.”