In June 2014, Islamic State of Iraq and the Levant (ISIL, also known as ISIS) forces captured Mosul, Iraq's second-largest city. Over two years later, it is ISIL's last stronghold in the country.
The city, which still houses more than one million people, is now being besieged on all sides by a coalition of Iraqi and Kurdish troops, with additional support from Western forces. If ISIL is driven out of the city, the armed group no longer has any significant presence in Iraq, as this map of control shows.
According to the United Nations, the battle for Mosul has the potential to become one of the largest humanitarian disasters in history.
Shown below are a map of the broader Mosul area and which faction controls which area, and a map showing the city of Mosul with its most important roads and who controls which areas inside the city.
Source: Al Jazeera News