---
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title: "The Defence of the Realm: The Authorized History of MI5"
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# 1,032 pages of deep intelligence history Evocative photos & illustrations Authorized, insider perspective on MI5 The Defence of the Realm: The Authorized History of MI5

**Price:** 27976CFA
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## Summary

> 🕵️‍♀️ Unlock the secrets behind the shadows — the definitive MI5 story you can’t afford to miss!

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- **What is this?** The Defence of the Realm: The Authorized History of MI5
- **How much does it cost?** 27976CFA with free shipping
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## Key Features

- • **Rich Visual Storytelling:** Enhance your reading with captivating photographs and illustrations that bring covert operations to life.
- • **Critical & Balanced Analysis:** Navigate the complex shades of espionage with a narrative that is as authoritative as it is thought-provoking.
- • **Officially Authorized Insight:** Experience the rare privilege of an independent historian granted full access to MI5 archives, delivering unmatched authenticity.
- • **Comprehensive Historical Depth:** Dive into over a millennium of British intelligence evolution with 1,032 meticulously researched pages.
- • **Essential Reference for Professionals:** A must-have for historians, political analysts, and security professionals seeking a strategic overview of MI5’s role in national security.

## Overview

The Defence of the Realm is the authorized, comprehensive history of MI5, penned by Cambridge academic Christopher Andrew. Spanning over 1,000 pages, it offers an unparalleled, critically balanced account of British domestic intelligence from its origins through the Cold War to modern times. Featuring exclusive access to classified archives, this volume combines rigorous scholarship with evocative visuals, making it an essential resource for anyone fascinated by espionage, security, and political intrigue.

## Description

Buy The Defence of the Realm: The Authorized History of MI5 Reprint by Andrew, Christopher (ISBN: 8601416669588) from desertcart's Book Store. Everyday low prices and free delivery on eligible orders.

Review: An intelligence history written with style and authority - Professor Christopher Andrew has written an official history with style and authority and as with Professor Keith Jeffery's history of MI6, The United Kingdom's sister foreign intelligence service, the approach is as critical as it is expository. This work will remain an invaluable benchmark and reference for the history of British intelligence in the 20th century. The Security Service (MI5) should be given credit for recognising that historical analysis and narrative requires a view and understanding of the operations of covert government bodies in terms of home and foreign policy. Professor Andrew's evaluation of the damage of the Cambridge spy ring, lovingly christened 'The Magnificent Five' by their Soviet spymasters is chilling and captivating. You feel nauseated when learning how Anthony Blunt charmed his MI5 colleagues at their Second World War H/Q in St James's Street Mayfair, while systematically sacking the service of its crown jewels. While the MI5 secretaries adored him as some kind of Trevor Howard film star, he was filching out of the office over 1,700 documents to give to his NKVD case officer in the twilight of London's war-time gloom. But there was the curious irony that at the time the paranoid Soviet intelligence establishment thought the incontinent flow of secrets was too good to be true and that Blunt, Burgess, Maclean, Philby and Cairncross was playing double-cross. The greatest irony perhaps is that Sir Roger Hollis was onto Blunt; only to be personally tarred later in the maelstrom of paranoid suspicion about more Soviet moles, while Blunt enjoyed the privilege and glory of being Keeper of the Queen's pictures and an immunity cover-up lasting until 1979. There is so much writing and information in this 1,032 page volume that it needs to be read in bite-size chunks. But it is full of evocative and intriguing photographs and illustrations. The academic referencing and notation supports the accuracy of the sourcing rather than getting in the way of enjoying the book as historical literature. ***** In the light of the scandal about fake, malicious and manipulated reviews on desertcart, I am happy to declare that I have had no contact whatsoever with the author. He is certainly a researcher and writer I admire. I purchased the copy of the book reviewed here.
Review: The whole story, possibly - MI5 is responsible for protecting the United Kingdom against threats to national security, with October 2009 marking its centenary. Until recently it was - logically - clandestine. It now seems to have embarked on a charm offensive with its' doors permanently thrown open. How would Sir Humphrey Appleby - Yes Prime Minister - deal with this? On what basis would he sanction this book "while we cannot be told what we should not know, in the fullness of time at the appropriate junction, proportionate access to the available records will be rigorously considered". In one episode Appleby had to deal with M15, a former head had been a Russian spy discovering that "one of us" was "one of them!" We all have wondered how much was fact, what was fiction? This book will not tell you, it is a serious study not an expose, its contents selective and well ordered. It requires stamina, a heavy book (by weight and content), 1,000 pages and with it's stern black dustcover not unlike an official government report. It claims to be the first time any of the worlds leading intelligence or security services has "opened its archives to an independent historian." The author is a Cambridge academic and his role as an independent and objective historian made much off. But as it says in the subtitle, this is the "authorised biography" of MI5. I have read many books on intelligence agencies, these have been mostly dismal, much of what they do is mundane, bureaucratic, pointless, expensive, like little dogs chasing their tales it is an incestuous world spies spying on spies. Try Peter Wright "Spycatcher," far from inspirational. What Professor Andrew presents is a strategic, a political overview of MI5 rather than a description of tactical / operational methods. His approach, and he writes well, is absorbing but deferential. The book is organised in six chronological sections (listed as A-F) each with its own introduction (a committee at work here?). The bulk - 2/3rds - chronicles the organisational emergence, First and Second World War and operations before the 1970s. Here are some great successes crucial in defeating Hitler, perhaps their finest hour. This is an excellent reference for historians but not unfamiliar material or particularly insightful. This is a big book but a bigger subject, so Philby, Burgess, MacClean, Blunt and Cairncross get just 20 pages (Section D, Chapter 6). The last third deals with the late Cold War to the present and will appeal those interested in contemporary politics. Here we have the enemy within (spoilt for choice but communists, Labour Party, trade unions and the double agents inside M15 itself). There are no answers to conspiracy theories; the favourite being Harold Wilson but nothing was revealed (D11 or E4). And in passing Roger Hollis was not "one of them." As Robert Armstrong might have said, is someone being "economical with the truth?" Intelligence operations are ragged, even as far back as the Zinoviev letter which "may" have brought down the Labour government in 1924 (B1) there is no definitive answers provided here. Reading this book you have to think on what basis you assess MI5. In espionage and intelligence gathering failure is often apparent and well publicised while success is kept in the shade. MI5 stops people doing bad things but that's difficult to quantify. For example Andrew deals with the IRA bombing of the City of London, that further major explosions were thwarted but the details are not, cannot be, explained. This book gives the impression that MI5 has been for most of its existence barely adequate, passive and reactive. But that's how I like my security services, certainly if the alternative is the ruthless secret police that the Germans and Soviets, at times the FBI, created. Most of us will not have the depth of knowledge to adequately critique this book and if so you'd need plus 5,000 words to do it. Errors and omission accepted, from the perspective of an enthusiastic reader I found this to be fascinating in parts. For me the central issue is the balance MI5 has taken between defending the state and subverting it, and the shades of grey in-between. Each reader will find enough here to support their own prejudices and that is my recommendation for reading this book (well from page 503 onwards). Now all security agencies have found terrorism, coincidentally just as counter espionage and the KGB etc appear to have withered (be patient). While a creative opportunity to bloat their budgets and for M15 to present themselves as the new caring profession we should retain a very high level of scepticism. All these agencies are civil service bureaucracies, self-serving and at war with each other. I 'd be surprised if many read this tidy book from cover to cover but that's not a criticism. There is a lot of good history and interesting narrative. And it does no harm to keep an eye on the praetorians, which you can now do via their web site!

## Features

- New Store Stock

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | 63,941 in Books ( See Top 100 in Books ) 59 in Espionage Biographies 1,427 in History (Books) |
| Customer Reviews | 4.4 out of 5 stars 791 Reviews |

## Images

![The Defence of the Realm: The Authorized History of MI5 - Image 1](https://m.media-amazon.com/images/I/91E+sKI711L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ An intelligence history written with style and authority
*by T***K on 24 October 2010*

Professor Christopher Andrew has written an official history with style and authority and as with Professor Keith Jeffery's history of MI6, The United Kingdom's sister foreign intelligence service, the approach is as critical as it is expository. This work will remain an invaluable benchmark and reference for the history of British intelligence in the 20th century. The Security Service (MI5) should be given credit for recognising that historical analysis and narrative requires a view and understanding of the operations of covert government bodies in terms of home and foreign policy. Professor Andrew's evaluation of the damage of the Cambridge spy ring, lovingly christened 'The Magnificent Five' by their Soviet spymasters is chilling and captivating. You feel nauseated when learning how Anthony Blunt charmed his MI5 colleagues at their Second World War H/Q in St James's Street Mayfair, while systematically sacking the service of its crown jewels. While the MI5 secretaries adored him as some kind of Trevor Howard film star, he was filching out of the office over 1,700 documents to give to his NKVD case officer in the twilight of London's war-time gloom. But there was the curious irony that at the time the paranoid Soviet intelligence establishment thought the incontinent flow of secrets was too good to be true and that Blunt, Burgess, Maclean, Philby and Cairncross was playing double-cross. The greatest irony perhaps is that Sir Roger Hollis was onto Blunt; only to be personally tarred later in the maelstrom of paranoid suspicion about more Soviet moles, while Blunt enjoyed the privilege and glory of being Keeper of the Queen's pictures and an immunity cover-up lasting until 1979. There is so much writing and information in this 1,032 page volume that it needs to be read in bite-size chunks. But it is full of evocative and intriguing photographs and illustrations. The academic referencing and notation supports the accuracy of the sourcing rather than getting in the way of enjoying the book as historical literature. ***** In the light of the scandal about fake, malicious and manipulated reviews on Amazon, I am happy to declare that I have had no contact whatsoever with the author. He is certainly a researcher and writer I admire. I purchased the copy of the book reviewed here.

### ⭐⭐⭐⭐ The whole story, possibly
*by B***H on 8 October 2009*

MI5 is responsible for protecting the United Kingdom against threats to national security, with October 2009 marking its centenary. Until recently it was - logically - clandestine. It now seems to have embarked on a charm offensive with its' doors permanently thrown open. How would Sir Humphrey Appleby - Yes Prime Minister - deal with this? On what basis would he sanction this book "while we cannot be told what we should not know, in the fullness of time at the appropriate junction, proportionate access to the available records will be rigorously considered". In one episode Appleby had to deal with M15, a former head had been a Russian spy discovering that "one of us" was "one of them!" We all have wondered how much was fact, what was fiction? This book will not tell you, it is a serious study not an expose, its contents selective and well ordered. It requires stamina, a heavy book (by weight and content), 1,000 pages and with it's stern black dustcover not unlike an official government report. It claims to be the first time any of the worlds leading intelligence or security services has "opened its archives to an independent historian." The author is a Cambridge academic and his role as an independent and objective historian made much off. But as it says in the subtitle, this is the "authorised biography" of MI5. I have read many books on intelligence agencies, these have been mostly dismal, much of what they do is mundane, bureaucratic, pointless, expensive, like little dogs chasing their tales it is an incestuous world spies spying on spies. Try Peter Wright "Spycatcher," far from inspirational. What Professor Andrew presents is a strategic, a political overview of MI5 rather than a description of tactical / operational methods. His approach, and he writes well, is absorbing but deferential. The book is organised in six chronological sections (listed as A-F) each with its own introduction (a committee at work here?). The bulk - 2/3rds - chronicles the organisational emergence, First and Second World War and operations before the 1970s. Here are some great successes crucial in defeating Hitler, perhaps their finest hour. This is an excellent reference for historians but not unfamiliar material or particularly insightful. This is a big book but a bigger subject, so Philby, Burgess, MacClean, Blunt and Cairncross get just 20 pages (Section D, Chapter 6). The last third deals with the late Cold War to the present and will appeal those interested in contemporary politics. Here we have the enemy within (spoilt for choice but communists, Labour Party, trade unions and the double agents inside M15 itself). There are no answers to conspiracy theories; the favourite being Harold Wilson but nothing was revealed (D11 or E4). And in passing Roger Hollis was not "one of them." As Robert Armstrong might have said, is someone being "economical with the truth?" Intelligence operations are ragged, even as far back as the Zinoviev letter which "may" have brought down the Labour government in 1924 (B1) there is no definitive answers provided here. Reading this book you have to think on what basis you assess MI5. In espionage and intelligence gathering failure is often apparent and well publicised while success is kept in the shade. MI5 stops people doing bad things but that's difficult to quantify. For example Andrew deals with the IRA bombing of the City of London, that further major explosions were thwarted but the details are not, cannot be, explained. This book gives the impression that MI5 has been for most of its existence barely adequate, passive and reactive. But that's how I like my security services, certainly if the alternative is the ruthless secret police that the Germans and Soviets, at times the FBI, created. Most of us will not have the depth of knowledge to adequately critique this book and if so you'd need plus 5,000 words to do it. Errors and omission accepted, from the perspective of an enthusiastic reader I found this to be fascinating in parts. For me the central issue is the balance MI5 has taken between defending the state and subverting it, and the shades of grey in-between. Each reader will find enough here to support their own prejudices and that is my recommendation for reading this book (well from page 503 onwards). Now all security agencies have found terrorism, coincidentally just as counter espionage and the KGB etc appear to have withered (be patient). While a creative opportunity to bloat their budgets and for M15 to present themselves as the new caring profession we should retain a very high level of scepticism. All these agencies are civil service bureaucracies, self-serving and at war with each other. I 'd be surprised if many read this tidy book from cover to cover but that's not a criticism. There is a lot of good history and interesting narrative. And it does no harm to keep an eye on the praetorians, which you can now do via their web site!

### ⭐⭐⭐⭐⭐ well written - fine grained
*by A***E on 9 October 2009*

After a couple of chapters I can see that this book is well written and erudite. It's 1100 pages it going to take a long time to read but I am going to finish it. It's not a spy story but a history book. The author, to be given so much access must have been thought to be "on side" but he hasn't written a hagiography. For example, to get this review started I dipped in to see if it had anything to say about the Cambridge spies. It did. It seems that the establishment was so focused towards Germany that is was unable to look elsewhere, the information giving all the clues (including their membership of a Communist society at Cambridge) just wasn't even noticed. Which seems to explain why there were several junior officials that were also spying for the Soviets. The problem was compounded by a document security marking system wasn't much cop. The book reports the general weakness of this aspect of the service up to 1971 until there was a mass expulsion of Soviet Embassy staff. The author also discusses how the hardest challenge was to get clearance to publish information that affected other government departments - I'd love to know who he was talking about when he wrote "One significant excision as a result of these requirements [relating to the Wilson years] is, I believe, hard to justify" - which translated into English would probably be unprintable. He hasn't taken it lying down, as he then calls upon the relevant Government committee to (in effect) allow him to print a corrigendum. There's a lot there up to and including a discussion of the terrorism attacks in London and Glasgow. I'm looking forward to finishing reading an extra dimension informing 20th century history.

## Frequently Bought Together

- The Defence of the Realm: The Authorized History of MI5
- MI6: The History of the Secret Intelligence Service 1909-1949
- Behind the Enigma: The Authorised History of GCHQ, Britain’s Secret Cyber-Intelligence Agency

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