Andrew Chatterton is a Second World War historian and Public Relations professional. His role as Press Officer for the Coleshill Auxiliary Research Team (CART) led to his fascination with the secret layers of defense in place in case of an attempted German invasion during the Second World War. CART maintains the British Resistance Archive where the story of some of the civilian volunteers is kept, providing public recognition of the significant role they would have played in the event of an invasion.
James Holland is a historian, writer, and broadcaster. The author of the best-selling Fortress Malta, Battle of Britain, and Dam Busters, he has also written nine works of historical fiction. He regularly appears on television and radio, and has written and presented the BAFTA-shortlisted documentaries, Battle of Britain and Dam Busters for the BBC.