Books & media

National security 856 Foreign relations 173 Military policy 111 Prevention 97 Law and legislation 96 Security, International 93 Terrorism 92 Politics and government 89 History 63 Defenses 59 Government policy 54 Intelligence service 48 International cooperation 47 Defense industries 44 International relations 36 Strategic aspects 33 Political aspects 31 Armed Forces 26 World politics 25 Social aspects 24 Computer security 23 Electronic surveillance 23 Security measures 23 Human rights 20 Internal security 20 Forecasting 19 Civil defense 17 Civil rights 17 Economic conditions 17 Law enforcement 17