Book excerpt: From the secret history of international espionage and counter-espionage these thrilling true-life tales chart the key incidents and episodes of military intelligence, which have previously remained hidden and obscured. Drawing on the latest research, declassified information, and accompanied by stunning photographs, this book exposes the truth behind some of the greatest and most secret international spymasters and agents. From the Frumentarii of the ancient Romans to the CIA’s decade-long hunt for Osama bin Laden, the murky history of espionage is laid bare in this historical category. This book is part of a two-part series, also including: Secrets & Lies of Elite Fighting Units.