Soviet espionage in the United States

Since the late 1920s, the Soviet Union, through its GRU, OGPU, NKVD, and KGB intelligence agencies, used Russian and foreign-born nationals as well as Communists of American origin to perform espionage activities in the United States. These various espionage networks had contact with various U.S. government agencies, transmitting to Moscow information that would have been deemed confidential.

Soviet espionage in the United States

Since the late 1920s, the Soviet Union, through its GRU, OGPU, NKVD, and KGB intelligence agencies, used Russian and foreign-born nationals as well as Communists of American origin to perform espionage activities in the United States. These various espionage networks had contact with various U.S. government agencies, transmitting to Moscow information that would have been deemed confidential.