A Hundred Years of Spying

Early espionage organisations like Walsingham's Elizabethan spy network were private enterprises, tasked with keeping the Tudor Queen and her government safe. Formal use of spies and counter spies only really began in the years after 1909, when the official British secret service was founded. Britain became the first major proponent of secret information gathering and other nations quickly followed. The outbreak of war in 1914 saw a sudden and dramatic increase in the use of spies as the mi...