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Lecture

Iain MacGregor and Helen Fry
Hiroshima: The Fateful Decision to Use the Atomic Bomb

Sunday 23.11.2025

How to watch

This lecture starts on 23 November at 5:00pm (UK).

Summary

80 years after Hiroshima, Helen Fry is in conversation with Iain MacGregor on his new research and book The Hiroshima Men (“Really outstanding.”—David Dimbleby). Among the many topics covered, they discuss the development of the atomic bomb and the fateful decisions around its first use in a conflict.

Iain MacGregor

An image of Iain MacGregor
Iain is a successful editor of non fiction for major publishing houses, working with talented and bestselling historians such as Michael Wood, Simon Schama, William Taubman, Alice Roberts and John Nichol – as well as publishing tie-ins with archives and podcasts such as the Imperial War Museum and R4’s ‘In Our Time’ series with Melvyn Bragg. He is also a writer and public speaker on modern history, with pieces in the Guardian, BBC History Magazine, the Spectator and the Washington Post. He is a Fellow of the Royal Historical Society. He lives with his family in London.

Helen Fry

an image of Helen Fry
Helen Fry has authored and edited over 25 books covering the social history of the Second World War, including British Intelligence and the secret war, espionage, and spies, as well as MI9 escape and evasion. She is the foremost authority on the “secret listeners” who worked at special eavesdropping sites operated by British Intelligence during WWII. Helen is the official biographer of MI6 spymaster, Colonel Thomas Joseph Kendrick. She has also extensively written about the 10,000 Germans who fought for Britain during WWII. Helen has appeared in a number of documentaries and has provided advisory services for TV and drama. She also appears regularly in media interviews and podcasts. Helen is an ambassador for the National Centre for Military Intelligence (NCMI) and serves as a trustee of both the Friends of the Intelligence Corps Museum and the Medmenham Collection. She works in London.