Misdefending the Realm: How MI5's incompetence enabled Communist Subversion of Britain's Institutions during the Nazi-Soviet Pact

The story of this extraordinary escapade, hitherto ignored by the historians, lies at the heart of a thorough and scholarly expose of MI5's constitutional inability to resist communist infiltration of Britain's corridors of power and its later attempt to cover up its negligence.
This book will be of interest to all students of history, international relations, espionage and civil, national and international security.