Islamic State presence Islamic State controlled city Kurd controlled city Contested city Iraqi controlled city

The Islamic State on the march

As the Islamic State continues to seize cities in Iraq, here is a look at the radical group's strongholds and control over various cities.

ISIS on the march

Ethno-religious map of Iraq

The gains by the Islamic State threaten to break the country apart along sectarian lines that pervade much of Iraq.

Ethno-religious map of Iraq

SOURCE: The Institute for the Study of War, The Long War Journal, CIA World Factbook.. GRAPHIC: Swati Sharma, Laris Karklis and Gene Thorp. Published June 11, 2014.