The Cold War was all about gaining the advantage of information about the enemies’ atomic weaponry. The Cold War was a state of political and military tension after World War II led by the United States (and the Western Bloc) and the Soviet Union ( and the Eastern Bloc). Although the two powers never engaged in a full out war, both countries were constantly preparing for an all-out nuclear war. Thus the use of spies to gain insight into the knowledge of how far their enemies were advancing