Iraq is being hit once again by a wave of attacks claimed by groups linked to al-Qaeda.

The armed group was forced back after Sunni tribesman turned against them to fight alongside US forces.

But many now many fear al-Qaeda is making a return.

In an Al Jazeera special series, we take a look at Iraq one year after US troops left the country.

Al Jazeera's Jane Arraf reports from Samara.

Source: Al Jazeera