At the Program on Extremism at the George Washington University, in conjunction with GW Libraries and Academic Innovation and the National Churchill Library and Center, Aaron Y. Zelin discusses his new book titled "Your Sons Are At Your Service: Tunisia's Missionaries of Jihad", where he details the history of the Tunisians' involvement in the Jihadi movement, and deeply explains why so many Tunisians became drawn to Jihadism since the 2011 revolution. Tunisia had always stood out as a democratic bright spot of the Arab Spring, and had very little history of terrorist violence, until 2011 when it became one of the largest sources of foreign Islamic State fighters.—chribren