Signal intelligence is the most secret, and most misunderstood, weapon in the modern espionage arsenal. As a reliable source of information, it is unequalled, which is why Government Communications Headquarters, almost universally known as GCHQ, is severa
Signal intelligence is the most secret, and most misunderstood, weapon in the modern espionage arsenal. As a reliable source of information, it is une...
Written by a renowned expert in the field, this is the full story of the UK's Secret Intelligence Service, more commonly known as MI6, from its formation in 1909.
Written by a renowned expert in the field, this is the full story of the UK's Secret Intelligence Service, more commonly known as MI6, from its format...
A compendium of undercover warfare from around the world, featuring spies, soldiers, mercenaries and assassins. The secret history of 20th- and 21st-century warfare.
A compendium of undercover warfare from around the world, featuring spies, soldiers, mercenaries and assassins. The secret history of 20th- and 21st-c...
