Secret service World War, 1939-1945 23 History 22 Spies 21 Intelligence officers 5 Espionage, German 4 Officials and employees 4 more ... Armed Forces 3 Campaigns 3 Employees 3 Holocaust, Jewish (1939-1945) 3 Military campaigns 3 Officers 3 Vietnam War, 1961-1975 3 Zionists 3 Anti-Nazi movement 2 Censorship 2 Espionage 2 Espionage, British 2 Friends and associates 2 Friendship 2 Heroes 2 Identity 2 Jews 2 Military intelligence 2 Mythology 2 Parachute troops 2 Participation, Female 2 Righteous Gentiles in the Holocaust 2 Soldiers 2 less ...