The Defence of the Realm

Discover the fascinating history of the British Security Service, MI5, in The Defence of the Realm by Christopher M. Andrew. Published in 2010, this comprehensive volume spans an impressive 1,072 pages, diving deep into the archives of MI5, which have been opened to independent historians for the first time. Andrew meticulously uncovers the pivotal role MI5 has played in shaping twentieth-century British history, starting from its inception by Captain Kell of the British Army in October 1909, aimed at identifying 'the spies of the Kaiser.' This book not only highlights the intelligence service's historical significance but also provides a detailed account of its evolution over the century. Perfect for history enthusiasts and anyone interested in the intricate workings of British intelligence, The Defence of the Realm is a must-read that offers a unique perspective on national security and espionage.