Since defecting from the Syrian Army early in 2012, former colonel Abu Muhammed has been trying to organise rebel forces. His new comrades aren't used to taking orders. It's Abu Mohammed's responsibility to distribute ammunition and the rebels fighting the Syrian Army on the frontline are running short.
Salahuddin district in Aleppo has seen the bloodiest fighting since the civil war began. The rebels use anything available to build barriers in a war where the frontline is constantly changing. Government soldiers have taken an important building in a nearby residential area.
The rebels need to win it back, quickly. They claim to have killed 5 enemy soldiers while the others fled. But this can't be confirmed. When they return to base, some of their own men are missing. The missing men reappear with a defector who has left the Syrian army to join the rebels.
The government of Bashar al-Assad is mainly from the minority Alawites. But most of the population is made up of Sunni Muslims who've suffered under Assad's repressive regime. With two-and-a-half million people, Aleppo is Syria's largest city. It's the country's commercial center and its citadel is one of the oldest structures in the world.