KGB

The KGB, or Committee for State Security, was the main security agency in the Soviet Union from 1954 until its dissolution in 1991. It functioned as a secret police force, intelligence agency, and counterintelligence service, playing a key role in maintaining state security and suppressing political dissent. The KGB was also involved in espionage activities abroad, gathering intelligence on other nations during the Cold War. Its complex operations and infamous methods contributed to the atmosphere of fear in the USSR and shaped global espionage tactics during that era. After the Soviet Union's collapse, it was succeeded by several different agencies in Russia.