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Why did more than 15,000 people from the former Soviet bloc join ISIS - nearly a third of the group's foreign fighters?
In Goodbye, ISIS: What Remains is Future, award-winning journalist Katerina Sergatskova investigates one of the most underexplored chapters of global terrorism. Drawing on years of reporting across Georgia, Turkey, Iraq, and Ukraine, she traces the personal stories of ISIS recruits, their families, and even those falsely accused of affiliation.
Through vivid interviews and groundbreaking reporting, Sergatskova reveals how post-Soviet fighters shaped ISIS, how the movement spread into the Caucasus, and why Ukraine has become an unexpected landing place for some of its veterans. Alongside this narrative, she connects today's extremist networks to earlier figures like Dzhokhar Dudayev and Shamil Basayev, showing how past conflicts laid the groundwork for ISIS's reach.
Both deeply human and geopolitically urgent, Goodbye, ISIS challenges assumptions about terrorism, migration, and security in the post-Soviet world -- and why understanding it matters for global stability.
Katerina Sergatskova is an award-winning journalist, author, entrepreneur, and security trainer specializing in high-risk environments. She extensively reported on the war in Ukraine, Russian invasion, human rights violations in Eastern Europe, and war on the Islamic State in the Middle East.
Translated by
Kate Tsurkan is an American writer, editor, and translator based in Chernivtsi, Ukraine. Her co-translation, with Yulia Lyubka, of State of War (Meridian Czernowitz), edited by Evgenia Lopata and Andriy Lyubka, received the 2025 Peterson Literary Fund Translated Book Award. She is a reporter at the Kyiv Independent, where she writes on culture and history and publishes the weekly newsletter Explaining Ukraine with Kate Tsurkan. In 2017 she co-founded Apofenie, an online magazine of Central and Eastern European literature in translation with a particular focus on contemporary Ukrainian writing. Her other book-length co-translations from the Ukrainian include Oleh Sentsov's Diary of a Hunger Striker, Myroslav Laiuk's Bakhmut, Andriy Lyubka's War from the Rear, and Khrystia Vengryniuk's Long Eyes. With Dmytro Kyyan she has translated Lyubko Deresh's Medusa's Gaze, forthcoming from Academic Studies Press. Her writing and translations have appeared in The New Yorker, The Guardian, Vanity Fair, Harper's, The Washington Post, The New York Times, and the Los Angeles Review of Books. Trained as a scholar of nineteenth-century French literature at New York University, she works from Ukrainian, Russian, and French.
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