NPR's Adrian Ma speaks with Lina Khatib of Chatam House, about the significance of rebel groups entering the city of Aleppo, Syria, in a conflict that many believed had reached a stalemate.

Syria’s antigovernment forces claimed a stunning advance into Aleppo, in a setback for the government in Damascus and its allies Russia and Iran.

(CNN) — Eight years ago, Syria’s civil war shifted in President Bashar Al-Assad’s favor after a Russian blitzkrieg on Aleppo helped him regain control over the country’s second biggest city.

Syrian armed opposition forces have entered Aleppo just three days into their surprise offensive, marking the first time they have set foot in the country’s second largest city since government ...

The Syrian military statement said that the insurgents had not been able to establish fixed positions in Aleppo city due to the army’s continued bombardment of their positions.

Eight years ago, Syria’s civil war shifted in President Bashar Al-Assad’s favor after a Russian blitzkrieg on Aleppo helped him regain control over the country’s second biggest city.

Syrian armed opposition forces have entered Aleppo just three days into their surprise offensive, marking the first time they have set foot in the country’s second largest city since government ...