In peace time- not during a regular, declared Military action- it would probaly be Mr. Julius Rosenberg, along with his wife, Ethel. This occured in peacetime. both were convicted in having conducted espionage on highly secretive US weapons systems-such as the Implosion type fuse used to detonate A-bombs. the material was so secret even the technical documents used evasive language such as Lenses to focus detonating waves- rather than merely ( Fuse imploder). a deadly serious matter of the Cold war. These devices had and still have, no civilian application.
alastair christie
it was Ethel and Julius Rosenberg
they were the first spies executed for violation of the Atomic Espionage Act.
They were accused of espionage.
Julius Rosenberg?
Prosecuted and executed? 2
While there were a few cases of nuclear espionage involving various people, only Julius and Ethel Rosenberg were executed at Sing Sing for nuclear espionage.
Ethel & Julius Rosenberg were executed for espionage.
Julius and Ethel Rosenberg were charged, convicted, and executed for espionage, specifically for passing information about the atomic bomb to the Soviet Union during the Cold War. They were found guilty of conspiracy to commit espionage and sentenced to death in 1953.
It is widely believed that Julius and Ethel Rosenberg were guilty of espionage. They were convicted and executed for aiding the Russians.
The statue is that of Nathan Hale, the first American captured by the Bristish and found guilty of espionage and executed for espionage in behalf of his country. You may read about Nathan Hale through Google.
Julius and Ethel Rosenberg were accused of spying for the Soviets and specifically for passing atomic secrets to the USSR during the Cold War. They were tried and convicted in 1951 for conspiracy to commit espionage, and unlike others convicted of similar crimes, they were given the death penalty. They were executed by electrocution on June 19, 1953. The Rosenbergs were the only two US civilians executed for espionage during the Cold War (1945 to 1991).
Julius and Ethel Rosenberg were convicted of conspiracy to commit espionage, in that they passed atomic secrets to the USSR. They were convicted in 1951 and executed in 1953. (see related link)
You may be thinking of the 'exotic' dancer Mata Hari who was executed in 1917 during the First World War .