Spies, Spying and Intelligence - since 1900-ish
Mark W. Doyle is a former Intelligence Analyst with UK Police (Counterterrorism) and US private investigations and currently a money laundering investigator for an international bank. Fiction includes the Alexander Danilov series of thrillers.
A Counterintelligence Perspective on Espionage, Terrorism, Deception and Propaganda
Military operations & force structure, history, geopolitics