Buy The Defence of the Realm The Authorized History of MI5

Christopher Andrew is Professor of Modern and Contemporary History, who has published a number of previous books on intelligence history. He is also a leading historian of Britain's intelligence agencies.

The Defence of the Realm: The Authorized History of MI5 is a history book written by Christopher Andrew, which marks the centenary of the Security Services and their role in twentieth-century British history, right from its establishment in 1909 to the present day. Actually, MI5 stands for ‘Military Intelligence (Department) 5’, which works to figure out a range of threats including terrorism, espionage and the production of weapons for mass destruction. Basically, this MI5 is a security intelligence agency for UK, which is responsible for protecting the UK citizens and their interests at home and overseas, and acts against the major threats to national security.

This book also throws new light on many events and periods in British history, which also includes the successful mission by MI5 in turning German agents during the Second World War and also has valuable information about the Profumo affair and its aftermath, and about a list of formerly unconfirmed Soviet contacts.

This book also reveals that headquarters of MI5 is at Thames House in London and also have eight regional offices around Great Britain. Moreover, the Security Service is organized into seven branches, each with specific areas of responsibility. In short, The Defence of the Realm: The Authorized History of MI5 is a historical book that brings out the successful achievements made by the security intelligence agency and its documentary collections over the events that occurred, relating to security threats.