Johan Wennström

Biography

Dr. Johan Wennström is a research fellow at the Swedish Defence University and author of the forthcoming book The Stay Behinds: Sweden’s Cold War Guardians (Osprey/Bloomsbury 2026). He is also a researcher at Uppsala University. Previously, he spent nine years as a doctoral student and researcher at the Research Institute of Industrial Economics (IFN).

Dr. Wennström is the author of six books; the Swedish edition of The Stay Behinds was a national bestseller. He is currently a foreign policy writer for the Swedish weekly Fokus and a contributor to Britain’s UnHerd. His journalism has also appeared in City Journal, The Spectator and Quillette, among other publications.

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Books

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Front cover of Stealing Hitler's Rocket by Guy Walters.

Articles

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A Spy in the Archive: How I Pieced Together a Stay-Behind Network

When I first met historian Andrew Roberts, who wrote the foreword to my forthcoming book The Stay Behinds: Sweden’s Cold War Guardians, he asked: "How do you even research a stay-behind network?"Highly secret stay-behind groups were established across NATO-aligned and neutral Western ...