Jessica Stern and J.M. Berger | Time

Jessica Stern and J.M. Berger

Jessica Stern and J.M. Berger are the authors of "ISIS: The State of Terror."

A Sunni fighter who has joined Shi'ite militia groups known collectively as Hashid Shaabi (Popular Mobilization), allied with Iraqi forces against ISIS, looks at an Islamic State flag and ammunition displayed in al-Alam Salahuddin province, March 15, 2015.

A 6-Point Plan to Defeat ISIS in the Propaganda War

Each of ISIS's propaganda goals is vulnerable to a messaging counteroffensi...

Each of ISIS's propaganda goals is vulnerable to a messaging counteroffensive