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Defend the Realm: The Authorized History of MI5 Reprint Edition, Kindle Edition

4.4 4.4 out of 5 stars 695 ratings

For over 100 years, the agents of MI5 have defended Britain against enemy subversion. Their work has remained shrouded in secrecy—until now. This first-ever authorized account reveals the British Security Service as never before: its inner workings, its clandestine operations, its failures and its triumphs.

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A Q&A with Christopher Andrew

Question: Where does "MI5" come from?

Christopher Andrew: MI5 originally stood for "Military Intelligence [Department] 5." The Secret Service Bureau (SSB) was formed in 1909 to counter the danger to Britain from German espionage, and the division of the SSB responsible for counter-espionage within the British Isles became Department 5, or "MI5." MI5 was renamed the Security Service in 1931, but is still commonly known as MI5 today.

Question: Where is MI5 based?

Christopher Andrew: MI5's staff, headed by Director General Jonathan Evans, is largely based in their headquarters at Thames House in London. They also have eight regional offices around Great Britain plus a Northern Ireland headquarters. The Service is organized into seven branches, each with specific areas of responsibility, which work to counter a range of threats including terrorism, espionage and the proliferation of weapons of mass destruction.

Question: What happened to MI1-MI4?

Christopher Andrew: There were a number of departments within the Directorate of Military Intelligence (MI1 through MI19) which dealt with a range of issues. For example, MI1 was responsible for code-breaking, and MI2 handled Russian and Scandinavian intelligence. The responsibilities of these departments were either discontinued or absorbed into The War Office, MI5 and MI6 and, later, the Government Communications Headquarters.

Question:What is the difference between MI5 and MI6?

The Security Service (MI5) is the UK’s security intelligence agency, responsible for protecting the UK, its citizens and interests, at home and overseas, against the major threats to national security. The Secret Intelligence Service (MI6) is primarily responsible for gathering intelligence outside the UK in support of the government's security, defence, foreign and economic policies.

Question: How realistic is the depiction of MI5 in the television series Spooks (MI-5 here in the United States)?

Christopher Andrew: The BBC's Spooks is a slickly-produced and entertaining drama, but, like other works of spy fiction, it glamorizes the world of intelligence. The nature of MI5's work can be stimulating and highly rewarding (as the show's strapline declares, it is not "9 to 5"), but the program does not portray the full range of their activities, nor the routine, but vitally important, aspects of their operations which would not make such exciting viewing. Particularly unrealistic is the way in which the characters in Spooks regularly act outside the law in pursuit of their investigations!

(Photo © Michael Jones)

From Booklist

Commissioned by Britain’s Security Service, the formal name of MI5, this history unrolls under the reputable authorship of a veteran scholar on intelligence. Two motifs dominate Andrew’s work: specific domestic security investigations and MI5’s organizational evolution in terms of personnel and leadership. Headed for its first three decades by its founder, Vernon Kell, MI5 earned its spurs in World War I by detecting German spies. The interwar years, Andrew recounts, were not MI5’s best; failing to identify Soviet agents who penetrated MI5 itself, it suffered disruptive internal investigations until the 1970s. However, its successes against Nazi spies in World War II raised its reputation, which has generally remained high ever since with British prime ministers, except for the two Harolds, Macmillan and Wilson, who suspected MI5 of connivance against their administrations. Acquitting MI5 from accusations of domestic political interference, Andrew concludes with accounts of recent decades’ cases of countersubversion, counterespionage, and counterterrorism. An important publication, this history will become part of the foundation of any collection on the history of intelligence agencies. --Gilbert Taylor

Product details

  • ASIN ‏ : ‎ B002UZ5J1S
  • Publisher ‏ : ‎ Vintage; Reprint edition (October 30, 2009)
  • Publication date ‏ : ‎ October 30, 2009
  • Language ‏ : ‎ English
  • File size ‏ : ‎ 15816 KB
  • Text-to-Speech ‏ : ‎ Enabled
  • Screen Reader ‏ : ‎ Supported
  • Enhanced typesetting ‏ : ‎ Enabled
  • X-Ray ‏ : ‎ Not Enabled
  • Word Wise ‏ : ‎ Enabled
  • Sticky notes ‏ : ‎ On Kindle Scribe
  • Print length ‏ : ‎ 1106 pages
  • Page numbers source ISBN ‏ : ‎ 0307275817
  • Customer Reviews:
    4.4 4.4 out of 5 stars 695 ratings

About the author

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Christopher Andrew
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Christopher Andrew is Professor of Modern and Contemporary History and Chair of the Faculty of History at Cambridge University.

Customer reviews

4.4 out of 5 stars
4.4 out of 5
695 global ratings

Top reviews from the United States

Reviewed in the United States on April 23, 2016
MI5, the British Security Service, was not even acknowledged until 1989, and has now reached the century mark with a massive, authorized biography. This truly compendious volume, commissioned by MI5, was compiled by the acclaimed intelligence writer and historian, Christopher Andrew.
This is a history of the one hundred years beginning with the founding of MI5 in 1909 in response to the Edwardian spy mania, changing from a focus on counter-espionage and counter-subversion to one of counter-terrorism. It remains perhaps the most famous and effective clandestine agency in the world.
The role of MI5 has changed over the century: while maintaining secrecy in order to effectively protect parliamentary democracy, it has been under increasing pressure to be as transparent as possible. Mr. Andrew, professor of modern history at Cambridge University, was chosen to delve into the secret history of MI5 and given unrestricted access to the 400,000 internal files of the service.
No doubt, Mr. Andrew opened himself to criticism in that he has asked his readers to accept his analysis upon faith. Since the rest of us cannot independently verify his conclusions , we must put our trust in his integrity. Sometime in the future, other researchers may be given access to the files, and this has surely given pause to Mr. Andrew to accurately record his findings.
The result is a wonderfully detailed look at the critical issues confronting the Security Service from the time of British imperialism, through the “Red Scare” and “Boche” period of pre- and post-WWI, the Second World War, the Cold War, the exposure of the Soviet infiltration of both MI5 and MI6, and up to the terrorism threats of the turn of the present century.
Beginning with the card index of suspicious persons (over 200,000 names in 1917), the concerns of MI5 have been widespread; the 1920s and 30s were concerned with the threat of international communism; WWII brought fears of fascism in Europe and Asia. The Cold War ushered in Soviet skullduggery and the need to combat al-Quaida after 9/11.
The thousand-plus pages of this book are brimming with details of the achievements—and failures of MI5. Was counter-intelligence specialist Peter Wright correct about infiltration of the services beyond that of the Cambridge Five? Was P.M. Harold Wilson correct in his belief that MI5 was surveiling him?
Jews were prohibited from serving in MI5 until the late 1970s because of their perceived double loyalty to Britain and Israel. MI5 chief Guy Liddell testified before the Joint Intelligence Committee in 1949, stating that “n_____ coming here often went to the C[ommunist] P[arty]” and that “West African natives are wholly unfitted for self-rule.” MI5 conducted secret surveillance of the colonial delegations coming to London for post-WWII independence discussions. It must be admitted that the transition of power from the British Empire to independent states in Africa and Asia came off much more smoothly than the same transitions by the rest of the European countries.
The notable achievements of the Security Service include the Double-Cross System of WWII; the complete list of successes is limited by the need to maintain secrecy, a problem of all clandestine agencies; the measure of their success is judged by the things that do not happen.
Defend the Realm is not a flawless book. In any security service, it is difficult—perhaps impossible—to separate fact from fiction. With its eccentric mix of professional soldiers, amateur spies, and false identities, it is to Mr. Andrew’s credit that he has achieved so much.
Mr. Andrew is an historian of high repute. His studies of Soviet intelligence in collaboration with two defectors and ex-KGB officers, Oleg Gordievsky and Vasili Mitrokhin, are monumental. His books include KGB: The Inside Story (1990), The Sword and the Shield: The Mitrokhin Archive and the Secret History of the KGB (1999), and The Word Was Going Our Way: The KGB and the Battle for the Third World (2005).
As for criticism that his appointment as official historian for MI5 (he was too close to the Security Service to be impartial), his response as quoted in The Guardian was, “Posterity and postgraduates are breathing down my neck. I tell my PhD students: I know you can only get on in the profession by assaulting teachers. You are not going to make a reputation by saying, ‘Look, Professor Andrew was right all along the line.’” As MI5’s files are eventually opened to other researchers (as they will no doubt be), Mr. Andrew’s work will be scrutinized. Any “white-washing” would be exposed and his work undermined.
Defend the Realm is a most valuable and comprehensive contribution to the understanding of the British Security Service and, by extension, the twentieth century. In the world of smoke and mirrors, truths and lies, this is the one book that intelligence professionals need to read.
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Reviewed in the United States on January 7, 2010
This book is one of the most comprehensive books ever written about an intelligence organization. It is also an authorized history meaning that MI5, the UK's domestic intelligence service actually co-operated with the author to produce this astonishingly complete history.
It should be emphasized that MI5 has evolved considerably since its creation in 1909, but it was never simply a "domestic intelligence" organization. Its original purpose was what today is called counter-intelligence and the allied mission of keeping track of foreign residents in the UK. As the organization evolved and, in spite of missteps and pratfalls along the way, proved its worth it branched out into other duties and responsibilities. After a rather confused start MI5 performed quite well in WWI preventing sabotage, espionage and subversion by German agents. In WWII it did much the same, but also created and executed the so-called `double-cross' system of turning enemy spies into double agents. After the war it was active not only in the UK, but also in the British colonies as the UK slowly dismantled it Empire. And long before the al Qaeda terrorist movement, MI5 operatives initiated counter-terrorist strategies against both colonial terrorist movements, particularly in Malaysia and Kenya, and in the UK against the Provisional Wing of the IRA.
The real mission of MI5 is and has always been what is called national security and its organization and mission has changed repeatedly as threats to UK national security have changed. Today MI5 responsibilities include domestic intelligence operations, executive protection, and counter-terrorism/counter-intelligence. Yet it is essential that MI5 has always avoided anything that could be called `law enforcement' or para-military operations. By avoiding these it has avoided being called a secret police organization. It is what it has always been, an organization that identifies and develops information (intelligence) on threats to UK national security and if required involves the police or military to actually counter them. MI5 often walks a very fine line between domestic intelligence and law enforcement, but for the most part has succeeded in keeping the two separate.
This is a very fine book that provides an absolutely riveting account of a most interesting organization.
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Reviewed in the United States on January 1, 2011
I have just completed "Defending The Realm" and I have to say from a amatuer historian's view I loved it. From the minute that I picked it up I could not put it down. I found it well written and very informative, Christopher Andrew is an excellent author and I have another book that he has written about the KGB that I am looking forward to getting to. I will be buying more books by this author that is for sure.
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Top reviews from other countries

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Robert Kearns
5.0 out of 5 stars Informative history.
Reviewed in the United Kingdom on May 18, 2024
Informative and well presented history of spying in the UK.
Akul diddi
4.0 out of 5 stars Christopher andrews : ur a knowlegeable man indeed
Reviewed in India on June 10, 2018
A very apt historical account of internal security service of britain from its formation
Client d'Amazon
4.0 out of 5 stars Avis sur l'ouvrage
Reviewed in France on April 14, 2016
Cet ouvrage, reconnu et salué par la critique, expose en détail, l'histoire très attendue des Services de renseignement intérieur du Royaume Uni. Il fera très certainement un ouvrage de référence pour tous les passionnés d'histoire en général, en particulier ceux intéressés par les aspects de défense, stratégie et sécurité.
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G. Siegfried
5.0 out of 5 stars MI5 History
Reviewed in Germany on July 27, 2010
Für Interessierte ein ausgezeichnetes und unverzichtbares Buch. Die authorisierte Geschichte des britischen Geheimdienstes MI5 von den Anfängen im Jahr 1909 bis zur jüngeren Gegenwart überrascht mit erstaunlicher Offenheit. Der Autor, Professor Christopher Andrew, hatte unbeschränkten Zugang zu den Archiven des MI5 erhalten und beschreibt die über 100jährige Geschichte des Dienstes auf mehr als 1000 Seiten so genau, wie es die vorhandenen Unterlagen zuließen. Es liegt in der Natur der Sache, daß die Darstellung der jüngeren Geschichte nebulöser wird und aktuellere Ereignisse der Geheimhaltung unterliegen. Für Geschichtsinteressierte und Historiker ist das Werk allein schon deshalb von Bedeutung, als meines Wissen kein anderer Geheimdienst, egal aus welchem Land, je eine vergleichbare und in weiten Teilen durchaus kritisch reflektierende Selbstdarstellung veröffentlicht hat.  The Defence of the Realm: The Authorised History of MI5
2 people found this helpful
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Navin
3.0 out of 5 stars soiled book
Reviewed in India on August 13, 2019
soiled
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