Briefing What's at stake in the battle for Aleppo?

Syria's largest city is contested by various rebel groups, including anti-US jihadists. A UN envoy is trying to broker a temporary cease-fire so that humanitarian aid can reach civilians.

Abdalrhman Ismail/Reuters

The battle for Syria’s largest city is intensifying, as are UN-led diplomatic efforts to arrange a local cease-fire. UN envoy Steffan De Mistura is trying to broker a halt to fighting in Aleppo between an array of Islamist and moderate rebels and the government forces of President Bashar al-Assad. Jihadist extremists also have their sights on the city, which is divided into rebel and regime enclaves.