Ursula Kuczynski
Ursula Kuczynski, codenamed Sonja, was a German-born Soviet spy who played a crucial role in the espionage efforts that supported the Soviet atomic bomb project during World War II. Her connections with scientists, particularly Klaus Fuchs, were instrumental in obtaining vital information regarding atomic research, which significantly aided the development of the Soviet nuclear program.
Born on Mar 10, 1907 (118 years old)
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Estonia:
Ursula Kuczynski, operating as Sonja, established a connection with atomic scientist Klaus Fuchs.
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