The importance of the use of espionage during the Cold WarDuring the Cold War, the amount of funding and resources devoted to espionage increased , which was useful both in the United States and USSR. Because there was no combat, spies became the primary use in the battle for supremacy. The definition of espionage is the act or practice of spying or using spies to obtain secret information, such as about another government. It is by which governments obtain the systematic use of spies to obtain military or political secrets. It was used to gain information about the enemy as well as to increase influence over areas where there were conflicting ideologies. Soviet espionage was organized by the KGB, formed in 1954. The KGB had half a million employees and their main role was to gather information on Western technology and military operations. Soviet spies were the most influential in obtaining the information needed to make the atomic bombs. The amount of information they gathered was reportedly “enormous, invaluable, and significant to our state and our science.” Famous spies such as Julius Rosenberg and Harry Gold allegedly provided atomic secrets to American communists, which were then passed to the Kremlin. British spies Burgess, Philby and Maclean were recruited by the Soviets while studying at Cambridge and later passed important British secrets to the Soviets. On the American side, the CIA was established in 1947 and ordered to collect and analyze information about threats to American security as well as to perform other functions, including undermining the enemy by means secrets. During the Truman presidency, the CIA's powers were rarely used, but once Eisenhower came to power, this attitude changed and the CIA greatly expanded its operations under Eisenhower's influence. The CIA's greatest success is said to have been the overthrow of the left-wing government in Guatemala in 1954, as well as the overthrow of Allende's left-wing government in Chile., 1973.