As early as 1937,
Nazi spy networks operated
in Chile, which the
Chilean Navy discovered via radio (perhaps in 1939). The department had the support of the United States
Federal Bureau of Investigation's wartime
Special Intelligence Service. The investigators broke up one spy ring in 1942 and another in 1944. Initially some agents attempted to flee to other countries, but due to
Argentina severing ties with the
Axis, many opted to remain in Chile. The Nazis captured intelligence regarding the routes of Allied
merchant ships and planned to attack
mines in northern Chile. About 100 spies were arrested in the 1944 raid, including coordinator
Bernardo Timmermann.
Expansion into Latin America Due to the
counterespionage effort, the center of Axis espionage operations shifted fully to Buenos Aires, where a
diplomatic pouch was used; some captured spies disclosed details of agents operating in that city. Nazi espionage networks were dismantled in Argentina, Brazil,
Colombia, and
Venezuela. {{gallery|mode=packed|title=Nazi activity in Latin America (–) == Legacy ==