Government policy -- Terrorism -- 20 Foreign relations -- 15 Prevention -- 7 Politics and government -- 6 War on Terrorism, 2001-2009 5 Military policy 4 more ... Case studies 3 National security -- 3 Nuclear weapons -- 3 Case studies -- 2 Economic sanctions, American 2 History -- 2 Politics and government 2 Relations 2 Social conditions -- 2 War on terrorism, 2001- 2 Civil defense -- 1 Civil rights -- 1 Counterinsurgency -- 1 Cross- cultural studies 1 Defence -- 1 Defenses 1 Democracy -- 1 Deterrence (Strategy) 1 Economic policy -- 1 Emergency management -- 1 Environmental policy -- 1 Finance -- 1 Financial crises -- 1 less ...