The Illegals

Shortlisted for the ALCS Gold Dagger for Non-Fiction 2026 'Absolutely fascinating' Andrew Marr AN ECONOMIST BOOK OF THE YEAR 2025 AN i PAPER BOOK OF THE YEAR 2025 'A brilliant historical investigation that's as gripping as a Le Carré novel' Tom Burgis In 2010, two decades after the Cold War had ended, ten Russian spies were arrested in America, having hidden their true identities from their friends, neighbours and even their children. They were part of a spy programme that had begun nearly a century earlier. These deep-cover missions - some remarkable feats of espionage, others high-profile failures - could last for decades. Drawing on hundreds of hours of interviews, and newly-discovered archival material, The Illegals is a page-turning tour de force, that shines new light on the long arc of the Soviet experiment and its messy aftermath - and on how that hidden history shaped Russia and the West.

Shortlisted for the ALCS Gold Dagger for Non-Fiction 2026 'Absolutely fascinating' Andrew Marr AN ECONOMIST BOOK OF THE YEAR 2025 AN i PAPER BOOK OF THE YEAR 2025 'A brilliant historical investigation that's as gripping as a Le Carré novel' Tom Burgis In 2010, two decades after the Cold War had ended, ten Russian spies were arrested in America, having hidden their true identities from their friends, neighbours and even their children. They were part of a spy programme that had begun nearly a century earlier. These deep-cover missions - some remarkable feats of espionage, others high-profile failures - could last for decades. Drawing on hundreds of hours of interviews, and newly-discovered archival material, The Illegals is a page-turning tour de force, that shines new light on the long arc of the Soviet experiment and its messy aftermath - and on how that hidden history shaped Russia and the West.

'A brilliant historical investigation that's as gripping as a Le Carré novel' Tom Burgis 'Shaun Walker skilfully shows how Russia's modern-day election meddling is rooted in the subterfuge and trickery of the bad old days. This is a fascinating read.' Oliver Bullough 'A gripping history critical to understanding many of Russia's influence operations today.' Catherine Belton 'Sinister, clandestine and deadly - this is essential history, and it is happening now.' Simon Sebag Montefiore 'A riveting spy thriller, which doubles as a secret history of Russia.' Peter Pomerantsev In 2010, two decades after the Cold War had ended, ten Russian spies were arrested in America, having hidden their true identities from their friends, neighbours and even their children. They were part of a spy programme that had begun nearly a century earlier, when the revolutionary Bolshevik government began sending Soviet citizens abroad to pose as foreign aristocrats, merchants and students. These deep-cover missions - some remarkable feats of espionage, others high-profile failures - could last for decades. Drawing on hundreds of hours of interviews, as well as newly discovered archival material, Shaun Walker brings this history to life in a page-turning tour de force that goes to the heart of what became the most ambitious espionage programme in history. As Moscow continues to infiltrate illegals across the globe, The Illegals shines new light on the long arc of the Soviet experiment and its messy aftermath - and on how that hidden history shaped Russia and the West.

The definitive history of Russia's most secret spy program, from the earliest days of the Soviet Union to Putin's invasion of Ukraine, and a revelatory examination of how that hidden history shaped both Russia and the West. More than a century ago, the new Bolshevik government began sending Soviet citizens abroad as deep-cover spies, training them to pose as foreign aristocrats, merchants, and students. Over time, this grew into the most ambitious espionage program in history. Many intelligence agencies use undercover operatives, but the KGB was the only one to go to such lengths, spending years training its spies in language and etiquette, and sending them abroad on missions that could last for decades. These spies were known as "illegals." During the Second World War, illegals were dispatched behind enemy lines to assassinate high-ranking Nazis. Later, in the Cold War, they were sent to assimilate and lie low as sleepers in the West. The greatest among them performed remarkable feats, while many others failed in their missions or cracked under the strain of living a double life. Drawing on hundreds of hours of interviews, as well as archival research in more than a dozen countries, Shaun Walker brings this history to life in a page-turning tour de force that takes us into the heart of the KGB's most secretive program. A riveting spy drama peopled with richly drawn characters, The Illegals also uncovers a hidden thread in the story of Russia itself. As Putin extols Soviet achievements and the KGB's espionage prowess, and Moscow continues to infiltrate illegals across the globe, this timely narrative shines new light on the long arc of the Soviet experiment, its messy aftermath, and its influence on our world at large.

The definitive history of Russia's most secret spy program, from the earliest days of the Soviet Union to Putin's invasion of Ukraine, and a revelatory examination of how that hidden history shaped both Russia and the West. More than a century ago, the new Bolshevik government began sending Soviet citizens abroad as deep-cover spies, training them to pose as foreign aristocrats, merchants, and students. Over time, this grew into the most ambitious espionage program in history. Many intelligence agencies use undercover operatives, but the KGB was the only one to go to such lengths, spending years training its spies in language and etiquette, and sending them abroad on missions that could last for decades. These spies were known as "illegals." During the Second World War, illegals were dispatched behind enemy lines to assassinate high-ranking Nazis. Later, in the Cold War, they were sent to assimilate and lie low as sleepers in the West. The greatest among them performed remarkable feats, while many others failed in their missions or cracked under the strain of living a double life. Drawing on hundreds of hours of interviews, as well as archival research in more than a dozen countries, Shaun Walker brings this history to life in a page-turning tour de force that takes us into the heart of the KGB's most secretive program. A riveting spy drama peopled with richly drawn characters, The Illegals also uncovers a hidden thread in the story of Russia itself. As Putin extols Soviet achievements and the KGB's espionage prowess, and Moscow continues to infiltrate illegals across the globe, this timely narrative shines new light on the long arc of the Soviet experiment, its messy aftermath, and its influence on our world at large.