In WWII, the U.S. stayed ahead of the Soviet Union in the race for atomic bombs, but the Soviets' genius for espionage allowed them to acquire atomic secrets of their own.

Learn about the history and reach of the Komitet Gosudarstvennoe Bezopasnosti (Committee for State Security), the agency of the former Soviet Union responsible for state security from 1954 to 1991.

One of the former Soviet Union's greatest espionage operations ended in 1951 when two young English diplomats at the British Foreign Office were revealed to have spent a decade funneling secrets to the KGB.

Examine the story of Japans’ elaborate espionage network, including the build-up to Pearl Harbor and beyond.

Mata Hari, Sidney Reilly, Lawrence of Arabia, Cicero, Lonsdale, the Lucy Spy Ring.

The French had a sophisticated intelligence network, which was active during WWI, confronted the Bolsheviks during the inter-war years, and has continued from World War II to today.