The 13-year civil war in Syria has roared back into prominence as insurgents seized Aleppo in a shock offensive marking a major threat to president Bashar al-Assad’s brutal regime.The push – which saw insurgents seize the country’s second-largest city – is among the strongest in years,

Syrian rebels have swept through parts of the country at lightning pace, taking control of the the second-largest city, Aleppo. But who are they and what are their aims?

Syria's military rushed in reinforcements on Sunday to push back insurgents from advancing farther into the northern Hama countryside after they seized Aleppo.View on euronews