On Background  ·   October 29, 2013

ISIS, explained

- Amid a sprawling civil war in Syria, hundreds of rebel groups battle the Bashar al-Assad regime—and each other. Military analyst Mike Lyons describes a brutal new entrant to the fight: the al Qaeda-affiliated Islamic State of Iraq and Syria. ()

- Amid a sprawling civil war in Syria, hundreds of rebel groups battle the Bashar al-Assad regime—and each other. Military analyst Mike Lyons describes a brutal new entrant to the fight: the al Qaeda-affiliated Islamic State of Iraq and Syria. ()

ISIS, explained (0:48)

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