The KGB

The KGB was the main security and intelligence agency of the Soviet Union, operational from 1954 to 1991. It served multiple functions, including spying on foreign nations, gathering intelligence, maintaining internal security, and suppressing political dissent. The KGB was known for its extensive network of agents and surveillance, and it played a key role in Cold War espionage activities. It also controlled borders and monitored citizens, often through covert operations. After the Soviet Union's collapse, the KGB was reorganized into several agencies, with the Federal Security Service (FSB) being its primary successor in Russia.