ISIS recruiting was a recurring theme during our years in Gaziantep.

My mom used to get their ads on Facebook, their black flag flying from horseback into the wind as a heroic score played.

On one occasion, our grandparents were visiting and took us to a park. My grandfather eventually approached two thickly bearded men in the jihadist garb and, with translation from my sister, had a brief conversation. One showed him a photo of his brother across the Syrian border, in a group of men with black masks and assault rifles.

They interacted with local mosques and were linked to some of their more troubling behavior.

The Political Aesthetics of ISIS and Italian Futurism
(The New Yorker) Letter from Gaziantep: The Vortex by Robin Wright
(NYT) ISIS Draws a Steady Stream of Recruits From Turkey By Ceylan Yeginsu
(Journal of Strategic Security) ISIS in Their Own Words
(Wikipedia) ISIS-chan