Intelligence officers 42 Biography 26 History 16 Fiction 13 Intelligence service 5 United States 5 World War, 1939-1945 5 Great Britain 4 Central Intelligence Agency 3 Fictitious character 3 Islamic fundamentalism 3 Military intelligence 3 Undercover operations 3 Bauer, Jack (Fictitious character) 2 Campaigns 2 Chinese American 2 Espionage 2 Estonia 2 Islam 2 Japanese occupation, 1942-1945 2 Personal narratives, American 2 Prevention 2 Religious aspects 2 Stone, Nick (Fictitious character) 2 Terrorism 2 Allied forces. South West Pacific Area. Allied Intelligence 1 American 1 Area 51 (Nev.) 1 Asia 1 Assassination attempts 1