Ian Ona Johnson is the P.J. Moran Family Assistant Professor of Military History at the University of Notre Dame. His work has been featured in the Wall Street Journal, The National Interest, and the Bulletin of Atomic Scientists, among other publications.

Winner of the Society for Military History Distinguished Book Award for First Book

"Readers interested in the technical aspects of experiments and in the development of prototypes will benefit from this book. Regarding the political aspects of the cooperation, Johnson confirms the assumptions of the authoritative literature." -- Dietrich Beyrau, H/Soz/Kult

"The strength of Johnson's work is that he clearly illustrates that most of the Reichswehr's top leadership had been on board for a war of revenge to assert Germany's primacy on the continent well before Hitler and the Nazis came to power." -- Roger R. Reese, Texas A&M University, The Russian Review

"Johnson's book is a revelation and a triumph. It lays bare one of the least-known and least-understood of inter-war relationships – the odious pariahs' dance between Germany and the Soviet Union. Well-written and academically impeccable, it is an essential read for everyone interested in the period." -- Roger Moorhouse, author of Poland 1939: The Outbreak of World War II and The Devils' Alliance: Hitler's Pact with Stalin, 1939-1941

"Ian Johnson has done extraordinary research, drawing on twenty-three archives in five countries and three languages, which allows him to tell a highly original story: How the German-Soviet partnership of the early 1920s lay at the foundation of European politics in the two decades that followed, helping to determine Stalin's Terror, the German army's virulent contempt for Bolshevism, and ultimately the outbreak and conduct of the Second World War and the Holocaust. This is one of the most important and readable books in years on this critical period." -- Benjamin Hett, author of The Nazi Menace: Hitler, Churchill, Roosevelt, Stalin, and the Road to War

"Ian Johnson's compelling study is a major contribution to twentieth century history.Based on significant research, this study takes forward our knowledge of an important aspect of the background to World War Two." -- Jeremy Black, author of Rethinking Military History

"Compelling, elegantly written, and based on meticulous excavation of the archives, Ian Ona Johnson's book forces a reckoning with the interwar continuity of relations between the Soviet Union and their German partners—Weimar and Nazi alike. It reveals in captivating detail how Germany's clandestine rearmament shaped the Nazi German Wehrmacht, the Soviet Red Army, and the ultimate destabilization of Europe." -- Jennifer Siegel, The Ohio State University

"The strength of Johnson's work is that he clearly illustrates that most of the Reichswehr's top leadership had been on board for a war of revenge to assert Germany's primacy on the continent well before Hitler and the Nazis came to power. For the German military, a large, modern armed force was key to the restoration of Germany's place in Europe. In their eyes the illegal Soviet-German military cooperation was fundamental to achieving that." --The Russian Review